Encycolorpedia

蜜柑色／#fa8000十六進の色コード

#fa8000 Paint Chip十六進の色コードで蜜柑色色#fa8000茶色の色合いです。光の三原色RGBにおいて色モデル#fa8000は98.04％の赤色、50.2％の绿色、0％の青色でできている。HSLで色彩空間#fa8000は31°度の色調、100％の彩度、49％の明るさを有している。この色は約590.29nmの波長である。

ストック写真

  1. Hyla tree frog in yellow and orange flower
  2. Threading tapping attachments. Cutting tools.
  3. blaze, fire, flame background

色のバリエーション

名前付き色

配色

ダウンロード：GIMP GPL Adobe ASE (Adobe Swatch Exchange) Sketch Palette

#fa8000を補足するための#00b7fa線上グラデーション

  1. #fa8000
  2. #ec8a41
  3. #dc9468
  4. #c79d8c
  5. #aaa6b0
  6. #80afd5
  7. #00b7fa

単色

  1. #d56200
  2. #e16c00
  3. #ed7600
  4. #fa8000
  5. #ff8a15
  6. #ff9524
  7. #ff9f30

色調

  1. #fa8000
  2. #e88028
  3. #d5803e
  4. #c2804f
  5. #ad7f5f
  6. #977e6e
  7. #7d7d7d

色彩勾配

#fa8000黒まで

  1. #fa8000
  2. #ff953e
  3. #ffaa66 / #fa6
  4. #ffbf8b
  5. #ffd5b1
  6. #ffead8
  7. #ffffff / #fff

#fa8000白まで

  1. #fa8000
  2. #cc6a0c
  3. #a15411
  4. #774012
  5. #502c10
  6. #2b1a0b
  7. #000000 / #000

塗料

類似の塗料

  1. Sigma

    1. ★ Orange Terra / S 0585-Y40R
      #f88314       ΔE = 0.878 / LRV ≈ 36.2%
    2. Orange Terra / S 0585-Y50R
      #f97b1e       ΔE = 2.829 / LRV ≈ 34.4%

  2. Innocenti

    1. ★ Giallo Chiaro / 114
      #ff7f00       ΔE = 1.015 / LRV ≈ 36.4%

  3. Tamiya

    1. ★ Tamiya 80006,X6
      #ff7f00       ΔE = 1.015 / LRV ≈ 36.4%
    2. Tamiya 80026,X26
      #fe8b14       ΔE = 3.152 / LRV ≈ 39.6%

  4. Natural Color System / NCS

    1. ★ S 0585-Y30R
      #ff7e00       ΔE = 1.127 / LRV ≈ 36.2%
    2. S 2060-Y20R
      #ec8621       ΔE = 2.832 / LRV ≈ 35.0%

  5. Crayola

    1. ★ Orange Circuit
      #ff7e00       ΔE = 1.127 / LRV ≈ 36.2%
    2. ★ Fluorescent Orange
      #ff8300       ΔE = 1.334 / LRV ≈ 37.5%

  6. Pantone / PMS

    1. ★ 151 C
      #ff8200       ΔE = 1.154 / LRV ≈ 37.2%
    2. ★ 15-1335 TCX / Tangelo
      #ff7e04       ΔE = 1.225 / LRV ≈ 36.2%

  7. Brillux

    1. ★ 18.24.18
      #f38009       ΔE = 1.316 / LRV ≈ 34.5%

  8. Jedynka

    1. ★ Pasztell Narancs
      #f5821f       ΔE = 1.546 / LRV ≈ 35.5%

  9. Evonik-Degussa

    1. ★ 406
      #f9801e       ΔE = 1.691 / LRV ≈ 35.7%
    2. ★ 253A Coronette Orange
      #ef821c       ΔE = 2.108 / LRV ≈ 34.4%

  10. Caparol

    1. ★ 59 58 50 / Aprico 155
      #fc801c       ΔE = 1.718 / LRV ≈ 36.2%
    2. 10/10
      #e87c24       ΔE = 4.194 / LRV ≈ 31.7%

  11. Rackham

    1. ★ Merin's Fire (38)
      #ff7b00       ΔE = 1.723 / LRV ≈ 35.4%

  12. Vallejo Model Color

    1. ★ Light Orange (911)
      #ff7b00       ΔE = 1.723 / LRV ≈ 35.4%

  13. Old Citadel

    1. ★ Fiery Orange
      #ff7b00       ΔE = 1.723 / LRV ≈ 35.4%

  14. Federal Standard

    1. ★ Federal Standard 22510
      #ff7b00       ΔE = 1.723 / LRV ≈ 35.4%
    2. Federal Standard 12473
      #ed7a00       ΔE = 3.151 / LRV ≈ 31.9%

  15. Vallejo Game Color

    1. ★ Orange Fire (008)
      #ff7b00       ΔE = 1.723 / LRV ≈ 35.4%

  16. Reaper Master

    1. ★ Fire Orange (9006)
      #ff7b00       ΔE = 1.723 / LRV ≈ 35.4%

  17. ProMarker

    1. ★ Pumpkin
      #f18001       ΔE = 1.768 / LRV ≈ 34.1%

  18. Bristol

    1. ★ Marblebar / P041-W6
      #f88524       ΔE = 1.855 / LRV ≈ 36.9%
    2. Clay Paver / P038-W6
      #e1892f       ΔE = 4.944 / LRV ≈ 34.1%

  19. Taubmans

    1. ★ Marblebar / T12 17.H2
      #f88524       ΔE = 1.855 / LRV ≈ 36.9%
    2. Adrenalin Rush / T12 18.G2
      #ff8c1b       ΔE = 3.442 / LRV ≈ 40.1%

  20. Peintures MF

    1. ★ Énergie pure
      #f97e1c       ΔE = 1.924 / LRV ≈ 35.2%
    2. Carré de citrouilles
      #ff8d18       ΔE = 3.737 / LRV ≈ 40.4%

  21. Albany Paint

    1. ★ Tangerine
      #f48500       ΔE = 1.943 / LRV ≈ 36.0%
    2. Satsuma
      #f27900       ΔE = 2.633 / LRV ≈ 32.6%

  22. Dulux

    1. ★ 85YR 38/700
      #f18517       ΔE = 1.962 / LRV ≈ 35.5%
    2. 78YR 39/576
      #ed8b45       ΔE = 5.007 / LRV ≈ 36.9%

  23. Levis

    1. ★ Clear Orange C80
      #f18517       ΔE = 1.962 / LRV ≈ 35.5%
    2. Clear Orange B70
      #fa7625       ΔE = 4.786 / LRV ≈ 33.4%

  24. Volvo

    1. ★ Amber Yellow / 1214
      #fa7a08       ΔE = 1.966 / LRV ≈ 34.3%

  25. Little Greene

    1. ★ Marigold
      #f0841f       ΔE = 2.046 / LRV ≈ 35.1%

  26. Berger

    1. ★ Haley's Comet / 7973
      #fd8323       ΔE = 2.148 / LRV ≈ 37.2%
    2. Glorious Sunset / AC111
      #f89026       ΔE = 4.247 / LRV ≈ 40.0%

  27. Vista Paint

    1. ★ Haley's Comet
      #fd8323       ΔE = 2.148 / LRV ≈ 37.2%
    2. Glorious Sunset
      #f89026       ΔE = 4.247 / LRV ≈ 40.0%

  28. Scib Paints

    1. ★ Haley's Comet / 7973
      #fd8323       ΔE = 2.148 / LRV ≈ 37.2%
    2. Glorious Sunset / AC111
      #f89026       ΔE = 4.247 / LRV ≈ 40.0%

  29. GM / General Motors

    1. ★ Wheatland Yellow
      #fe8707       ΔE = 2.158 / LRV ≈ 38.4%
    2. Orbit Orange
      #fe852a       ΔE = 2.831 / LRV ≈ 38.0%

  30. Chrysler

    1. ★ Yellow
      #fe8707       ΔE = 2.158 / LRV ≈ 38.4%
    2. Orange
      #f67200       ΔE = 4.162 / LRV ≈ 31.6%

  31. Tollens

    1. ★ T2063-5
      #ff861d       ΔE = 2.181 / LRV ≈ 38.4%
    2. UC012 Orange Copenhague
      #e5871f       ΔE = 4.181 / LRV ≈ 34.1%

  32. Plascon

    1. ★ Baked Earth O4-B1-1
      #fc7c18       ΔE = 2.228 / LRV ≈ 35.2%
    2. Rich Amber O5-B1-1
      #fc8c1c       ΔE = 3.260 / LRV ≈ 39.5%

  33. Behr

    1. ★ Summer Citrus S-G-270
      #fa8226       ΔE = 2.240 / LRV ≈ 36.4%
    2. Mango Madness S-G-280
      #fd8c23       ΔE = 3.318 / LRV ≈ 39.8%

  34. General Paint

    1. ★ Verdict / CL 1667N
      #f98727       ΔE = 2.255 / LRV ≈ 37.6%
    2. Knickerbocker / CL 1656N
      #e38632       ΔE = 4.512 / LRV ≈ 33.6%

  35. TRUMATCH

    1. 8-a
      #f08400       ΔE = 2.351 / LRV ≈ 35.0%
    2. 8-a1
      #e77f00       ΔE = 3.794 / LRV ≈ 32.2%

  36. Australian Standard AS2700

    1. X13 Marigold
      #ed7f14       ΔE = 2.528 / LRV ≈ 33.2%

  37. Great Wall

    1. Taxi Yellow / 0303A
      #ef7b00       ΔE = 2.651 / LRV ≈ 32.5%

  38. Coronado Paint

    1. AC111 - Glorious Sunset
      #f4852e       ΔE = 2.673 / LRV ≈ 36.2%
    2. 7957 - Monarch Wing
      #ff8d25       ΔE = 3.727 / LRV ≈ 40.4%

  39. Earthpaint

    1. 1-8-7 Nasturtium
      #ee8727       ΔE = 2.727 / LRV ≈ 35.7%
    2. 1-7-6 Bird of Paradise
      #f68638       ΔE = 3.756 / LRV ≈ 36.9%

  40. Nippon Paint

    1. Orange Bouquet / NP AC 2062 A
      #fd8926       ΔE = 2.765 / LRV ≈ 38.9%
    2. Cheetah Spots / NP YO 1197 A
      #f87b2b       ΔE = 4.094 / LRV ≈ 34.3%

  41. Matthews Paint

    1. Navel Orange / 29653
      #eb811b       ΔE = 2.808 / LRV ≈ 33.4%
    2. Plastic Pumpkin / 853
      #f47d34       ΔE = 4.686 / LRV ≈ 34.2%

  42. Duron

    1. Kid's Stuff
      #ff8a18       ΔE = 2.929 / LRV ≈ 39.5%
    2. Carnival
      #fc900a       ΔE = 4.753 / LRV ≈ 40.7%

  43. Pratt & Lambert

    1. Baby Carrot 8-11
      #f38a2d       ΔE = 2.941 / LRV ≈ 37.4%
    2. Fresh Nasturtium 8-12
      #ec8230       ΔE = 3.557 / LRV ≈ 34.0%

  44. Dutch Boy

    1. Orange Bouquet
      #f38a2d       ΔE = 2.941 / LRV ≈ 37.4%
    2. Crayola Yellow Orange
      #e18126       ΔE = 4.713 / LRV ≈ 31.9%

  45. Devoe Paint

    1. Moroccan Sands / 01YY 36/694
      #ee8927       ΔE = 3.011 / LRV ≈ 36.2%
    2. Desert Orange / 78YR 39/593
      #f18d47       ΔE = 5.214 / LRV ≈ 38.2%

  46. Lascaux

    1. Cadmium­ orange medium / 122
      #f17c21       ΔE = 3.057 / LRV ≈ 33.2%

  47. Kelly-Moore

    1. Moro Orange / KM3584-5
      #fd882d       ΔE = 3.067 / LRV ≈ 38.7%

  48. ICI Paints

    1. 3367 Halloween 82YR 38/807
      #ff7e24       ΔE = 3.069 / LRV ≈ 36.3%
    2. Jack O Lantern 89YR 36/694
      #ec7f2c       ΔE = 3.695 / LRV ≈ 33.2%

  49. Nerolac

    1. Nasturtium - 2070
      #f48733       ΔE = 3.113 / LRV ≈ 36.8%

  50. Brighto Paints

    1. 1-7-7 Sunblest Poppy
      #ed7f26       ΔE = 3.149 / LRV ≈ 33.3%
    2. 1-7-6 Bird Of Paradise
      #fa9336       ΔE = 5.157 / LRV ≈ 41.5%

  51. British Standard

    1. BS 4800 06 E 53 - Orange
      #ff7d23       ΔE = 3.159 / LRV ≈ 36.1%
    2. BS 2660 BS 0-004 - Marigold
      #ed873d       ΔE = 4.296 / LRV ≈ 35.7%

  52. Habitat

    1. Orange
      #f5802d       ΔE = 3.176 / LRV ≈ 35.0%

  53. Focoltone

    1. 3507
      #ee7900       ΔE = 3.182 / LRV ≈ 31.9%
    2. 1161
      #f28e00       ΔE = 4.701 / LRV ≈ 38.2%

  54. Mitsubishi

    1. Dandelion Yellow / ZG
      #ea7e05       ΔE = 3.190 / LRV ≈ 32.4%

  55. ECOS Paints

    1. Orange You Happy? (0970)
      #fa8531       ΔE = 3.192 / LRV ≈ 37.3%
    2. Cheddar Cheese (0977)
      #f08a45       ΔE = 5.023 / LRV ≈ 37.1%

  56. Diamond Vogel

    1. Orange you Happy? / 0970
      #fa8531       ΔE = 3.192 / LRV ≈ 37.3%
    2. Cheddar Cheese / 0977
      #f08a45       ΔE = 5.023 / LRV ≈ 37.1%

  57. Colortrend

    1. 0970
      #fa8531       ΔE = 3.192 / LRV ≈ 37.3%
    2. 0977
      #f08a45       ΔE = 5.023 / LRV ≈ 37.1%

  58. Laura Ashley

    1. 44-3 Nasturtium
      #f78b31       ΔE = 3.280 / LRV ≈ 38.5%

  59. HKS

    1. HKS 7
      #ec870e       ΔE = 3.301 / LRV ≈ 35.2%
    2. HKS 8
      #ea7c13       ΔE = 3.420 / LRV ≈ 32.0%

  60. Sikkens

    1. E2.64.59
      #f48b32       ΔE = 3.306 / LRV ≈ 37.9%
    2. E0.50.60
      #ec893f       ΔE = 4.450 / LRV ≈ 36.1%

  61. Sherwin-Williams

    1. Carnival - 6892
      #eb882c       ΔE = 3.313 / LRV ≈ 35.5%
    2. Navel - 6887
      #ec8430       ΔE = 3.351 / LRV ≈ 34.6%

  62. Benjamin Moore

    1. Orange Burst / 2015-20
      #f67d29       ΔE = 3.366 / LRV ≈ 34.4%
    2. Fruit Punch / 140
      #f68d41       ΔE = 4.709 / LRV ≈ 39.0%

  63. Fabric Creations

    1. Orange Juice / 26329
      #eb7e23       ΔE = 3.389 / LRV ≈ 32.7%

  64. UMM

    1. Jaune / 333
      #ec7a11       ΔE = 3.436 / LRV ≈ 31.8%

  65. Asian Paints

    1. Goldfish / 7973
      #f98332       ΔE = 3.436 / LRV ≈ 36.6%
    2. Glorious Sunset / X111
      #f58f32       ΔE = 4.046 / LRV ≈ 39.3%

  66. Renault

    1. Amarillo / 308
      #f08a0c       ΔE = 3.480 / LRV ≈ 36.7%

  67. Dunn-Edwards

    1. Bright Mango / 2792
      #ff8830       ΔE = 3.525 / LRV ≈ 39.1%
    2. Instant Orange / 2794
      #ff8d28       ΔE = 3.777 / LRV ≈ 40.5%

  68. California Paints

    1. DE 5195 - Bright Mango
      #ff8830       ΔE = 3.525 / LRV ≈ 39.1%
    2. DEA 114 - Instant Orange
      #ff8d28       ΔE = 3.777 / LRV ≈ 40.5%

  69. CIL

    1. Moroccan Sands
      #ea8929       ΔE = 3.532 / LRV ≈ 35.5%

  70. Otokar

    1. Ral 1021 Sari Opak / M151560
      #f37500       ΔE = 3.551 / LRV ≈ 31.8%

  71. Loop

    1. Haarlem / LP-121
      #e78010       ΔE = 3.615 / LRV ≈ 32.5%
    2. Fluo Orange / LP-411
      #f08a00       ΔE = 3.742 / LRV ≈ 36.7%

  72. Delta

    1. Orange Soda / 02692
      #f5750b       ΔE = 3.635 / LRV ≈ 32.2%
    2. Tangelo / 04008
      #f58439       ΔE = 4.061 / LRV ≈ 36.2%

  73. Clark+Kensington

    1. Satsuma Tangerine / 14D-5
      #fc8d15       ΔE = 3.640 / LRV ≈ 39.8%

  74. Audi

    1. Papaya Orange/Papayaorange / LY2B, X3, X3X3
      #f98e1d       ΔE = 3.771 / LRV ≈ 39.6%
    2. Solar Orange / 3F3F, 3FPA, LY2G
      #f27719       ΔE = 3.797 / LRV ≈ 32.1%

  75. Glidden

    1. Jack O Lantern / 89YR 36/694
      #f18e2e       ΔE = 3.868 / LRV ≈ 38.2%

  76. Cloverdale Paint

    1. Glorious Sunset / AC111
      #f48d38       ΔE = 3.928 / LRV ≈ 38.6%
    2. Haleys Comet / 7973
      #fa8337       ΔE = 4.150 / LRV ≈ 36.8%

  77. RAL

    1. RAL 060 70 70
      #fc8c35       ΔE = 3.942 / LRV ≈ 39.7%
    2. RAL 2003 / Pastel Orange
      #f67828       ΔE = 4.532 / LRV ≈ 33.2%

  78. Color Profi System Uni

    1. 1*01*01.00 / 1*01*01.00
      #fa8d02       ΔE = 3.943 / LRV ≈ 39.4%

  79. Kaessbohrer

    1. Gelb / 1135
      #ff8e22       ΔE = 3.955 / LRV ≈ 40.7%

  80. Opaltone / OMS

    1. 4508
      #e48116       ΔE = 4.141 / LRV ≈ 32.3%
    2. 4502
      #e28927       ΔE = 4.844 / LRV ≈ 34.2%

  81. Ford

    1. Orange
      #f67200       ΔE = 4.162 / LRV ≈ 31.6%

  82. Resene

    1. Sun O74-181-067
      #ef8e38       ΔE = 4.186 / LRV ≈ 38.0%
    2. California O74-175-067
      #e98c3a       ΔE = 4.410 / LRV ≈ 36.4%

  83. Disney

    1. 1C-40-4 Oh Boing
      #ef8e20       ΔE = 4.204 / LRV ≈ 37.8%
    2. 1B-50 Orange Blast
      #f57c35       ΔE = 5.061 / LRV ≈ 34.1%

  84. Olympic

    1. Pumpkin Pleasure A22-6
      #ea863a       ΔE = 4.221 / LRV ≈ 34.9%

  85. Color Truck System

    1. 1*051 / 1*051
      #e57e00       ΔE = 4.223 / LRV ≈ 31.6%
    2. 1*033 / 1*033
      #ea8c06       ΔE = 4.941 / LRV ≈ 36.3%

  86. Toyo Ink

    1. CF10154
      #e47f0b       ΔE = 4.281 / LRV ≈ 31.7%
    2. CF10147
      #fd7d33       ΔE = 4.855 / LRV ≈ 35.8%

  87. Valspar Paint

    1. Sunset Boulevard
      #ff8032       ΔE = 4.323 / LRV ≈ 36.9%
    2. Autumn Blaze
      #f17b33       ΔE = 5.074 / LRV ≈ 33.1%

  88. Dupont

    1. CAS187
      #ff8e00       ΔE = 4.354 / LRV ≈ 40.6%
    2. CAS171
      #fd8f36       ΔE = 4.502 / LRV ≈ 40.8%

  89. Apple Barrel

    1. Outrageous Orange / 21961E
      #ff7f32       ΔE = 4.490 / LRV ≈ 36.7%
    2. Spiced Carrot / 21471
      #e78a40       ΔE = 4.832 / LRV ≈ 35.5%

  90. Model Master

    1. Model Master 28108
      #f4843e       ΔE = 4.730 / LRV ≈ 36.1%
    2. Model Master 28107
      #f48643       ΔE = 5.184 / LRV ≈ 36.7%

  91. Humbrol

    1. 18 Orange
      #f37521       ΔE = 4.806 / LRV ≈ 31.9%

  92. Pascol

    1. Sunnyvale PI020
      #f4782b       ΔE = 4.869 / LRV ≈ 32.8%

  93. Testors

    1. Testors 2527C
      #f37000       ΔE = 4.894 / LRV ≈ 30.6%

  94. Auro

    1. Fox-and-Cubs
      #ff8f3a       ΔE = 4.908 / LRV ≈ 41.2%

  95. Smart

    1. Hello Yellow / C05L
      #e48700       ΔE = 5.035 / LRV ≈ 33.8%

  96. Ressource Peintures

    1. Carrot / VINT01
      #eb7828       ΔE = 5.046 / LRV ≈ 31.3%

  97. Aston Martin

    1. Giallo Modena Ferrari / AST5018D
      #ee7100       ΔE = 5.068 / LRV ≈ 30.0%

  98. Wattyl

    1. Calendula / B78W
      #e3863e       ΔE = 5.182 / LRV ≈ 33.7%

  99. AMC

    1. Transport Yellow
      #f09331       ΔE = 5.237 / LRV ≈ 39.6%

色覚異常

1色覚

2色型色覚

3色型色覚

HTML&CSS例

#fa8000前景

七転び八起き。

<p style="color: #fa8000">…</p>

#fa8000背景

知らぬが仏。

<p style="background-color: #fa8000">…</p>

#fa8000テキストに影をつける

弱肉強食。

<p style="text-shadow: 0.1em 0.1em 0.15em #fa8000">…</p>

構成表

色空間変換

十進
16416768
二進法
11111010, 10000000, 00000000
十六進法
#fa8000
LRV
≈ 35.8%
最も近い短い16進数
#f81 ΔE = 2.442
RGB
rgb(250, 128, 0)
RGBA
rgba(250, 128, 0, 1.0)
rg色度
r: 0.661, g: 0.339, b: 0.000
RYB
赤色: 93.444%, 黄色: 98.039%, 青色: 0.000%
Android／android.graphics.Color
-360448／0xfffa8000
HSL
hsl(31, 100%, 49%)
HSLA
hsla(31, 100％, 49％, 1.0)
HSV／HSB
色相: 31° (30.720), 飽和: 100% (1.000), 値: 98% (0.980)
HSP
色相: 30.720, 飽和: 100.000%, 知覚される明るさ: 65.977%
HSLuv（HUSL）
H: 30.994, S: 99.979, L: 66.342
Cubehelix
H: 27.055, S: 1.474, L: 0.590
TSL
T: 2.692, S: 0.440, L: 0.588
CMYK
シアン色: 0% (0.000), マゼンタ色: 49% (0.488), 黄色: 100% (1.000), キー・プレート: 2% (0.020)
CMY
シアン色: 2% (0.020), マゼンタ色: 50% (0.498), 黄色: 100% (1.000)
XYZ
X: 47.148, Y: 35.768, Z: 4.421
xyY
x: 0.540, y: 0.410, Y: 35.768
Lab色空間
L: 66.342, a: 40.879, b: 73.228
CIELuv
L: 66.342, u: 101.852, v: 61.184
CIELCH／LCHab
L: 66.342, C: 83.865, H: 60.828
CIELUV／LCHuv
L: 66.342, C: 118.817, H: 30.994
Hunter-Lab
L: 59.807, a: 36.059, b: 37.482
CIECAM02
J: 59.746, C: 72.529, h: 57.170, Q: 152.288, M: 63.426, s: 64.536, H: 49.672
OSA-UCS
明度: -9.761, 黄色: 9.384, 緑色: -6.508
LMS
L: 49.198, M: 27.570, S: 4.976
YCbCr
Y: 144.762, Cb: 53.752, Cr: 190.646
YCoCg
Y: 126.500, Cg: 1.500, Co: 125.000
YDbDr
Y: 149.886, Db: -225.524, Dr: -190.402
YPbPr
Y: 144.770, Pb: -78.030, Pr: 66.888
xvYCC
Y: 140.332, Cb: 59.456, Cr: 186.757
YIQ
Y: 149.886, I: 113.799, Q: -14.028
YUV
Y: 149.886, U: -73.757, V: 87.831
マンセルカラーシステム
5YR 7/14 ΔE = 2.780
ブランドカラー
Grooveshark ΔE = 0.665

ランダム色

赤

緑

青