Encycolorpedia

#b54939十六進の色コード

#b54939 Paint Chip十六進の色コード#b54939赤色の色合いです。光の三原色RGBにおいて色モデル#b54939は70.98%の赤色、28.63%の绿色、22.35%の青色でできている。HSLで色彩空間#b54939は8°度の色調、52%の彩度、47%の明るさを有している。この色は約602.81nmの波長である。

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

#b54939を補足するための#00bdee線上グラデーション

  1. #b54939
  2. #b15f55
  3. #a97372
  4. #9d8690
  5. #8a99ae
  6. #69abce
  7. #00bdee

単色

  1. #9d3427
  2. #a53b2d
  3. #ad4233
  4. #b54939
  5. #bd503f
  6. #c55745
  7. #cd5e4b

色調

  1. #b54939
  2. #ad5343
  3. #a55b4d
  4. #9b6358
  5. #916a62
  6. #85716c
  7. #777777 / #777

色彩勾配

#b54939黒まで

  1. #b54939
  2. #c66857
  3. #d58676
  4. #e2a497
  5. #eec2b8
  6. #f7e0db
  7. #ffffff / #fff

#b54939白まで

  1. #b54939
  2. #953e30
  3. #763328
  4. #582820
  5. #3c1e18
  6. #22130f
  7. #000000 / #000

塗料

類似の塗料

  1. Opaltone / OMS

    1. ★ 4139
      #b54739
      ΔE = 0.633 / LRV ≈ 14.6%
    2. ★ 4140
      #ba4a37
      ΔE = 1.413 / LRV ≈ 15.6%
  2. Pantone / PMS

    1. ★ P 46-7 C
      #b54634
      ΔE = 1.056 / LRV ≈ 14.5%
    2. P 49-7 U
      #a64c48
      ΔE = 5.085 / LRV ≈ 13.7%
  3. Sigma

    1. ★ Sienna Brown / S 2070-Y80R
      #b44e3d
      ΔE = 1.203 / LRV ≈ 15.5%
    2. Warm Red / 3020
      #ba3b2d
      ΔE = 3.103 / LRV ≈ 13.8%
  4. Devoe Paint

    1. ★ Riding Hood / 30YR 15/550
      #b74935
      ΔE = 1.211 / LRV ≈ 15.1%
    2. Downing Street / 30YR 14/365
      #9e5443
      ΔE = 4.997 / LRV ≈ 14.0%
  5. Vallejo

    1. ★ Vallejo 70.829 #130
      #b34e3c
      ΔE = 1.227 / LRV ≈ 15.4%
    2. Vallejo 70.817 #26
      #be4630
      ΔE = 2.719 / LRV ≈ 15.5%
  6. Dulux

    1. ★ 26YR 14/548
      #b3463b
      ΔE = 1.545 / LRV ≈ 14.3%
    2. 31YR 18/648
      #cc4a39
      ΔE = 4.947 / LRV ≈ 18.0%
  7. Sherwin-Williams

    1. ★ Habanero Chile - 7589
      #b8473d
      ΔE = 1.636 / LRV ≈ 15.0%
    2. Ablaze - 6870
      #c04641
      ΔE = 3.410 / LRV ≈ 16.0%
  8. TRUMATCH

    1. ★ 5-c5
      #b74f3f
      ΔE = 1.679 / LRV ≈ 16.0%
    2. ★ 5-c6
      #ab493a
      ΔE = 2.143 / LRV ≈ 13.7%
  9. Earthpaint

    1. ★ 2-4-7 Indian Summer
      #ad4937
      ΔE = 1.748 / LRV ≈ 13.9%
    2. 2-4-6 Shell Coral
      #b8554a
      ΔE = 3.907 / LRV ≈ 17.2%
  10. Plascon

    1. ★ Rooibos R6-C1-2
      #b04434
      ΔE = 1.817 / LRV ≈ 13.6%
    2. Sienna Canyon Walls R5-C1-2
      #ac3c34
      ΔE = 4.235 / LRV ≈ 12.3%
  11. Colorhouse

    1. ★ Petal .06
      #ba4133
      ΔE = 1.862 / LRV ≈ 14.5%
    2. Create .04
      #b8352e
      ΔE = 4.184 / LRV ≈ 12.9%
  12. ICI Paints

    1. ★ 3229 Holly Berry 30YR 17/511
      #bc4c39
      ΔE = 1.938 / LRV ≈ 16.2%
    2. 3209 O'Hara 19YR 14/629
      #bc3330
      ΔE = 4.523 / LRV ≈ 13.3%
  13. Behr

    1. ★ Torch Red MQ4-35
      #ac4e3d
      ΔE = 1.994 / LRV ≈ 14.6%
    2. Tibetan Orange PPU2-14
      #ae5849
      ΔE = 3.984 / LRV ≈ 16.5%
  14. Ford

    1. ★ Medium Chestnut Diamond Fire
      #bc4c38
      ΔE = 2.055 / LRV ≈ 16.1%
    2. Orange Frost
      #c1432c
      ΔE = 3.602 / LRV ≈ 15.5%
  15. Glidden

    1. ★ Teaberry Blossom / PPG1189-7
      #b44940
      ΔE = 2.057 / LRV ≈ 14.8%
    2. Orange Vermillion / PPG1194-7
      #bc5339
      ΔE = 3.864 / LRV ≈ 17.2%
  16. PPG Pittsburgh Paints

    1. ★ Teaberry Blossom / PPG1189-7
      #b44940
      ΔE = 2.057 / LRV ≈ 14.8%
    2. Orange Vermillion / PPG1194-7
      #bc5339
      ΔE = 3.864 / LRV ≈ 17.2%
  17. Jotun

    1. ★ 2361 / Energi
      #b0483e
      ΔE = 2.093 / LRV ≈ 14.2%
    2. 2479 / Shiva
      #a85443
      ΔE = 3.456 / LRV ≈ 15.1%
  18. Porter Paints

    1. ★ Teaberry Blossom / 131-7
      #b94940
      ΔE = 2.101 / LRV ≈ 15.5%
    2. Ancient Copper / 328-7
      #a2543e
      ΔE = 4.555 / LRV ≈ 14.4%
  19. CIL

    1. ★ Chile
      #ac4739
      ΔE = 2.154 / LRV ≈ 13.6%
    2. Party Place
      #c84b38
      ΔE = 4.264 / LRV ≈ 17.6%
  20. Resene

    1. ★ Mexican Wave O55-142-047
      #b64a32
      ΔE = 2.161 / LRV ≈ 15.1%
    2. Forbidden R51-084-032
      #b04640
      ΔE = 3.139 / LRV ≈ 14.0%
  21. Valspar Paint

    1. ★ Cranberry
      #b34d35
      ΔE = 2.181 / LRV ≈ 15.2%
    2. Steelhead Redd X36R72F
      #c14434
      ΔE = 2.570 / LRV ≈ 15.7%
  22. Vista Paint

    1. ★ Scarlet Sumac
      #b34b42
      ΔE = 2.291 / LRV ≈ 15.0%
    2. High Society
      #aa4832
      ΔE = 2.899 / LRV ≈ 13.4%
  23. Berger

    1. ★ Scarlet Sumac / 8077
      #b34b42
      ΔE = 2.291 / LRV ≈ 15.0%
    2. China Rouge / AC117
      #c44538
      ΔE = 3.041 / LRV ≈ 16.3%
  24. Asian Paints

    1. ★ Geranium / 0509
      #b34b42
      ΔE = 2.291 / LRV ≈ 15.0%
    2. Rodeo / X117
      #c44538
      ΔE = 3.041 / LRV ≈ 16.3%
  25. Crown Paint

    1. Cuban Heat
      #c04939
      ΔE = 2.323 / LRV ≈ 16.3%
    2. Sticky Fingers
      #bc3f3a
      ΔE = 3.045 / LRV ≈ 14.6%
  26. Sto

    1. 32440
      #b5523e
      ΔE = 2.336 / LRV ≈ 16.2%
    2. 33100
      #cc463d
      ΔE = 4.806 / LRV ≈ 17.6%
  27. RAL

    1. RAL 3033 / Pearl pink
      #b44c43
      ΔE = 2.386 / LRV ≈ 15.3%
  28. Chrysler

    1. Bittersweet
      #b15243
      ΔE = 2.389 / LRV ≈ 15.8%
    2. Autumn Rust
      #ca4433
      ΔE = 4.427 / LRV ≈ 16.9%
  29. Caparol

    1. 1811
      #b05044
      ΔE = 2.469 / LRV ≈ 15.4%
    2. Inka 2
      #a84830
      ΔE = 3.563 / LRV ≈ 13.2%
  30. Dulux Australia

    1. Red Terra / A85
      #ae4530
      ΔE = 2.512 / LRV ≈ 13.5%
    2. Signal Red R13 / O39
      #c32f2d
      ΔE = 5.149 / LRV ≈ 13.8%
  31. Cloverdale Paint

    1. Red Red / AC120
      #be463e
      ΔE = 2.562 / LRV ≈ 15.7%
    2. China Rouge / AC117
      #bd5246
      ΔE = 3.505 / LRV ≈ 17.3%
  32. 1829

    1. Oriental Red
      #b35145
      ΔE = 2.591 / LRV ≈ 15.9%
  33. Lascaux

    1. Transoxide red / 171
      #be3f2f
      ΔE = 2.729 / LRV ≈ 14.7%
  34. Crayola

    1. Rose
      #a9473a
      ΔE = 2.844 / LRV ≈ 13.2%
    2. Chestnut
      #b94e48
      ΔE = 3.627 / LRV ≈ 16.2%
  35. Scib Paints

    1. High Society / AC116
      #aa4832
      ΔE = 2.899 / LRV ≈ 13.4%
    2. Truffle Trouble / 8605
      #9f4d38
      ΔE = 4.648 / LRV ≈ 13.0%
  36. Natural Color System / NCS

    1. S 3050-Y90R
      #b34039
      ΔE = 2.907 / LRV ≈ 13.5%
    2. S 4040-Y60R
      #a24b30
      ΔE = 4.902 / LRV ≈ 12.9%
  37. Mylands of London

    1. Rowanberry
      #c1423b
      ΔE = 3.012 / LRV ≈ 15.6%
  38. Levis

    1. Shady Red C50
      #b05446
      ΔE = 3.027 / LRV ≈ 16.0%
    2. Real Red
      #b75c4a
      ΔE = 5.040 / LRV ≈ 18.2%
  39. Nippon Paint

    1. Cotillion Red / NP AC 2071 A
      #b43d35
      ΔE = 3.057 / LRV ≈ 13.3%
    2. Diva / NP R 1267 A
      #c03b3e
      ΔE = 4.831 / LRV ≈ 14.7%
  40. Wattyl

    1. Red Barron / C58W
      #bf3d36
      ΔE = 3.070 / LRV ≈ 14.7%
    2. Fox Wood / C28W
      #a64d3a
      ΔE = 3.111 / LRV ≈ 13.7%
  41. Audi

    1. Sundown Orange / LB2A, Z7Z7
      #b7422a
      ΔE = 3.108 / LRV ≈ 14.1%
    2. Jaipurrot Pearl / 5H, LZ3S
      #bc4a28
      ΔE = 4.901 / LRV ≈ 15.7%
  42. Games Workshop - Citadel

    1. Squig Orange
      #aa4f44
      ΔE = 3.121 / LRV ≈ 14.6%
  43. Craig & Rose

    1. Paulliac
      #bb5046
      ΔE = 3.192 / LRV ≈ 16.7%
  44. Brillux

    1. 24.24.24
      #a94335
      ΔE = 3.259 / LRV ≈ 12.7%
    2. 24.18.24
      #9d483b
      ΔE = 5.217 / LRV ≈ 12.1%
  45. Crown Diamond

    1. 7242-73 Salsa Dance
      #a64c3f
      ΔE = 3.275 / LRV ≈ 13.6%
    2. 7240-63 Pareo
      #ab5745
      ΔE = 3.765 / LRV ≈ 15.9%
  46. Dunn-Edwards

    1. Red River / 1207
      #b95543
      ΔE = 3.320 / LRV ≈ 17.2%
    2. Iron Ore / 1070
      #af5b46
      ΔE = 4.655 / LRV ≈ 17.0%
  47. California Paints

    1. DE 5125 - Granville Island
      #b95543
      ΔE = 3.320 / LRV ≈ 17.2%
    2. DEA 153 - Glitzy Red
      #af413b
      ΔE = 3.479 / LRV ≈ 13.2%
  48. Clark+Kensington

    1. Apple of My Eye / 08C-7
      #b83e3a
      ΔE = 3.324 / LRV ≈ 13.9%
    2. Saffron Spice / 09B-7
      #a34d3c
      ΔE = 3.657 / LRV ≈ 13.4%
  49. Peintures MF

    1. Pomme d'amour
      #bc4743
      ΔE = 3.424 / LRV ≈ 15.6%
    2. Paradis des rêveurs
      #c64b33
      ΔE = 4.364 / LRV ≈ 17.3%
  50. Farrow & Ball

    1. Terre D'Egypte / 247
      #a85038
      ΔE = 3.457 / LRV ≈ 14.4%
    2. Blazer / 212
      #ae372f
      ΔE = 4.764 / LRV ≈ 11.9%
  51. Federal Standard

    1. Federal Standard 11120
      #c23b31
      ΔE = 3.459 / LRV ≈ 14.8%
    2. Federal Standard 21302
      #ca4e3f
      ΔE = 4.845 / LRV ≈ 18.4%
  52. Evonik-Degussa

    1. 262A Sashay Red
      #c43d35
      ΔE = 3.531 / LRV ≈ 15.3%
    2. 521
      #b14541
      ΔE = 3.585 / LRV ≈ 14.0%
  53. Benjamin Moore

    1. Iron Ore Red / 2089-10
      #aa5546
      ΔE = 3.535 / LRV ≈ 15.5%
    2. Egyptian Clay / CSP-1140
      #aa5945
      ΔE = 4.346 / LRV ≈ 16.1%
  54. Coronado Paint

    1. 8077 - Scarlet Sumac
      #ab4d46
      ΔE = 3.738 / LRV ≈ 14.4%
    2. 8053 - Grand Duke
      #c05449
      ΔE = 4.455 / LRV ≈ 18.0%
  55. Teknos

    1. GBI099
      #b65649
      ΔE = 3.741 / LRV ≈ 17.1%
  56. Tikkurila

    1. 9716
      #a34f3c
      ΔE = 3.750 / LRV ≈ 13.7%
  57. McCormick Paints

    1. Penny Lane
      #a55144
      ΔE = 3.753 / LRV ≈ 14.3%
  58. Laura Ashley

    1. 47-3 Fire Engine
      #c13f3d
      ΔE = 3.866 / LRV ≈ 15.2%
    2. 316 Marasca Cherry
      #c14543
      ΔE = 4.106 / LRV ≈ 16.0%
  59. Bristol

    1. Capriccio / P056-W6
      #b7563d
      ΔE = 3.882 / LRV ≈ 17.1%
    2. Toffee Apple / P066-W6
      #a3463b
      ΔE = 4.324 / LRV ≈ 12.5%
  60. Toyo Ink

    1. CF10123
      #b44a2b
      ΔE = 3.919 / LRV ≈ 14.8%
    2. CF10834
      #a04e3f
      ΔE = 4.313 / LRV ≈ 13.3%
  61. AMC

    1. Mandarin Orange
      #c64430
      ΔE = 3.921 / LRV ≈ 16.4%
    2. Grenadier Red
      #bf3333
      ΔE = 4.729 / LRV ≈ 13.7%
  62. Diamond Vogel

    1. Chuckles / 1089
      #c04e47
      ΔE = 3.972 / LRV ≈ 17.1%
    2. Sun's Rage / 1053
      #ae5943
      ΔE = 4.230 / LRV ≈ 16.6%
  63. Colortrend

    1. 1089
      #c04e47
      ΔE = 3.972 / LRV ≈ 17.1%
    2. 1053
      #ae5943
      ΔE = 4.230 / LRV ≈ 16.6%
  64. Alcro

    1. Royal Metallic
      #a2503d
      ΔE = 3.990 / LRV ≈ 13.8%
  65. Sikkens

    1. C0.40.40
      #b44f4a
      ΔE = 3.993 / LRV ≈ 15.8%
    2. B9.50.36
      #b64647
      ΔE = 4.789 / LRV ≈ 14.8%
  66. Disney

    1. 2B-80 Mickeys Pants
      #c43a36
      ΔE = 4.009 / LRV ≈ 15.0%
    2. 2C-80-4 Owls House
      #9d4f42
      ΔE = 5.037 / LRV ≈ 13.2%
  67. Taubmans

    1. Red Ross / T12 24.H4
      #b93733
      ΔE = 4.009 / LRV ≈ 13.3%
    2. Matlock Brown / T12 24.H5
      #a54334
      ΔE = 4.029 / LRV ≈ 12.3%
  68. Magnolia Home

    1. Hopscotch / JG-31
      #ab3f38
      ΔE = 4.107 / LRV ≈ 12.5%
  69. Tollens

    1. Orange sari | EE150
      #bf4b2e
      ΔE = 4.109 / LRV ≈ 16.3%
    2. Tomette | EE151
      #bd5639
      ΔE = 4.921 / LRV ≈ 17.8%
  70. GM / General Motors

    1. Sportsman Red
      #c93f36
      ΔE = 4.175 / LRV ≈ 16.2%
    2. Saffron
      #a5584c
      ΔE = 4.937 / LRV ≈ 15.5%
  71. KILZ

    1. Red Flare / B532
      #ac4d48
      ΔE = 4.182 / LRV ≈ 14.5%
    2. Scorching Hot / B692
      #af5b41
      ΔE = 5.092 / LRV ≈ 17.0%
  72. British Standard

    1. BS 4800 04 E 56 - Carnival red
      #bc3a3a
      ΔE = 4.232 / LRV ≈ 14.0%
    2. BS381 539 - Currant red
      #ad3d3c
      ΔE = 5.080 / LRV ≈ 12.6%
  73. Brighto Paints

    1. 6207 Brighto Red
      #c44b45
      ΔE = 4.238 / LRV ≈ 17.2%
    2. 2014 Red Chill
      #b75b4b
      ΔE = 4.847 / LRV ≈ 18.1%
  74. General Paint

    1. Cheyenne Pepper / CL 1477N
      #b85947
      ΔE = 4.287 / LRV ≈ 17.8%
    2. Zentury Brown / CL 1507N
      #a35841
      ΔE = 5.105 / LRV ≈ 15.1%
  75. Earthborn

    1. Flower Pot
      #a8482c
      ΔE = 4.305 / LRV ≈ 13.1%
  76. Dutch Boy

    1. Dark Persimmon
      #af4b2b
      ΔE = 4.312 / LRV ≈ 14.3%
    2. Flambe
      #ab392b
      ΔE = 4.773 / LRV ≈ 11.8%
  77. Kelly-Moore

    1. Crazy Horse / SS4313
      #aa5841
      ΔE = 4.330 / LRV ≈ 15.9%
    2. Vegas Redrock / KM4127-3
      #aa5b4e
      ΔE = 5.093 / LRV ≈ 16.6%
  78. Olympic

    1. Glowing Firelight B26-6
      #aa5841
      ΔE = 4.330 / LRV ≈ 15.9%
    2. Rum Raisin B27-6
      #9d483b
      ΔE = 5.217 / LRV ≈ 12.1%
  79. Australian Standard AS2700

    1. R52 Terra Cotta
      #a04c37
      ΔE = 4.465 / LRV ≈ 12.9%
    2. R13 Signal Red
      #ba302b
      ΔE = 4.969 / LRV ≈ 12.7%
  80. Nerolac

    1. Autumn Leaf - 2133
      #a55742
      ΔE = 4.489 / LRV ≈ 15.2%
    2. Red Ranch - 4573
      #bb584a
      ΔE = 4.501 / LRV ≈ 18.0%
  81. Kansai Paint

    1. Signal Red
      #aa403b
      ΔE = 4.496 / LRV ≈ 12.5%
    2. Deep Red
      #b0514d
      ΔE = 4.703 / LRV ≈ 15.7%
  82. Rodda Paint

    1. Porthsmouth Spice H13
      #a85949
      ΔE = 4.520 / LRV ≈ 16.0%
  83. Duron

    1. Cajun Red
      #a14633
      ΔE = 4.555 / LRV ≈ 12.2%
    2. Bravado Red
      #b74f4e
      ΔE = 5.170 / LRV ≈ 16.2%
  84. Humbrol

    1. 100 Red Brown
      #c05648
      ΔE = 4.575 / LRV ≈ 18.3%
  85. Little Greene

    1. Totally Tom
      #ab423f
      ΔE = 4.633 / LRV ≈ 12.9%
  86. Sico

    1. 6059-75 Etruscan Red
      #a6423b
      ΔE = 4.652 / LRV ≈ 12.3%
    2. 6062-73 Corrida
      #ad5b47
      ΔE = 4.678 / LRV ≈ 16.8%
  87. Pratt & Lambert

    1. Poppy 6-15
      #c25133
      ΔE = 5.006 / LRV ≈ 17.6%
    2. Raleigh Tavern Chinese Red CW102
      #9e4639
      ΔE = 5.176 / LRV ≈ 11.9%
  88. Sanderson

    1. Carmen Lt
      #be3026
      ΔE = 5.065 / LRV ≈ 13.2%
    2. Old Wine
      #ae5d4c
      ΔE = 5.190 / LRV ≈ 17.4%
  89. Johnstone's Paint

    1. Rich Red
      #ba4a4b
      ΔE = 5.116 / LRV ≈ 15.8%
    2. Signal Red
      #b13737
      ΔE = 5.233 / LRV ≈ 12.4%

色覚異常

1色覚

2色型色覚

3色型色覚

HTML&CSS例

#b54939前景

二兎を追う者は一兎をも得ず。

<p style="color: #b54939">…</p>

#b54939背景

海千山千。

<p style="background-color: #b54939">…</p>

#b54939テキストに影をつける

馬鹿は死ななきゃ治らない。

<p style="text-shadow: 0.1em 0.1em 0.15em #b54939">…</p>

構成表

色空間変換

十進
11880761
二進法
10110101, 01001001, 00111001
十六進法
#b54939
LRV
≈ 14.9%
最も近い短い16進数
#b43 ΔE = 1.557
RGB
rgb(181, 73, 57)
RGBA
rgba(181, 73, 57, 1.0)
rg色度
r: 0.582, g: 0.235, b: 0.183
RYB
赤色: 70.980%, 黄色: 29.557%, 青色: 22.353%
Android/android.graphics.Color
-4896455/0xffb54939
HSL
hsl(8, 52%, 47%)
HSLA
hsla(8, 52%, 47%, 1.0)
HSV/HSB
色相: 8° (7.742), 飽和: 69% (0.685), 値: 71% (0.710)
HSP
色相: 7.742, 飽和: 68.508%, 知覚される明るさ: 45.216%
HSLuv(HUSL)
H: 16.882, S: 70.000, L: 45.479
Cubehelix
H: -0.287, S: 0.775, L: 0.406
TSL
T: 3.810, S: 0.359, L: 0.406
CMYK
シアン色: 0% (0.000), マゼンタ色: 60% (0.597), 黄色: 69% (0.685), キー・プレート: 29% (0.290)
CMY
シアン色: 29% (0.290), マゼンタ色: 71% (0.714), 黄色: 78% (0.776)
XYZ
X: 22.179, Y: 14.887, Z: 5.576
xyY
x: 0.520, y: 0.349, Y: 14.887
Lab色空間
L: 45.479, a: 42.830, b: 31.729
CIELuv
L: 45.479, u: 83.067, v: 25.209
CIELCH/LCHab
L: 45.479, C: 53.302, H: 36.532
CIELUV/LCHuv
L: 45.479, C: 86.808, H: 16.882
Hunter-Lab
L: 38.584, a: 35.086, b: 18.441
CIECAM02
J: 37.485, C: 55.733, h: 30.887, Q: 120.625, M: 48.737, s: 63.564, H: 13.725
OSA-UCS
明度: -9.873, 黄色: 4.108, 緑色: -7.690
LMS
L: 21.743, M: 9.700, S: 5.752
YCbCr
Y: 104.895, Cb: 104.992, Cr: 176.548
YCoCg
Y: 96.000, Cg: -23.000, Co: 76.250
YDbDr
Y: 103.468, Db: -69.928, Dr: -147.436
YPbPr
Y: 94.852, Pb: -20.420, Pr: 54.736
xvYCC
Y: 97.461, Cb: 110.062, Cr: 176.082
YIQ
Y: 103.468, I: 69.478, Q: 17.859
YUV
Y: 103.468, U: -22.865, V: 68.020
マンセルカラーシステム
10R 5/10 ΔE = 4.081
ブランドカラー
YouTube ΔE = 4.257

ランダム色