Encycolorpedia

#a66a4b十六進の色コード

#a66a4b Paint Chip十六進の色コード#a66a4bオレンジ色の色合いです。光の三原色RGBにおいて色モデル#a66a4bは65.1%の赤色、41.57%の绿色、29.41%の青色でできている。HSLで色彩空間#a66a4bは20°度の色調、38%の彩度、47%の明るさを有している。この色は約589.69nm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

#a66a4bを補足するための#00c0f1線上グラデーション

  1. #a66a4b
  2. #a27965
  3. #9a8780
  4. #8e959b
  5. #7ca3b7
  6. #5eb2d4
  7. #00c0f1

単色

  1. #8d5436
  2. #955b3d
  3. #9e6344
  4. #a66a4b
  5. #ae7152
  6. #b77959
  7. #bf8060

色調

  1. #a66a4b
  2. #a06d53
  3. #996f5a
  4. #927262
  5. #8b746a
  6. #827771
  7. #797979

色彩勾配

#a66a4b黒まで

  1. #a66a4b
  2. #b78267
  3. #c79a83
  4. #d6b2a1
  5. #e4cbbf
  6. #f2e5df
  7. #ffffff / #fff

#a66a4b白まで

  1. #a66a4b
  2. #89583f
  3. #6c4633
  4. #513628
  5. #37261d
  6. #1f1712
  7. #000000 / #000

塗料

類似の塗料

  1. Pantone / PMS

    1. ★ 17-1340 TPG
      #a66948
      ΔE = 0.679 / LRV ≈ 18.7%
    2. 3R11 SP
      #996a58
      ΔE = 4.619 / LRV ≈ 17.8%
  2. Nerolac

    1. ★ Cinnamon Tea - 2084
      #a56a49
      ΔE = 0.710 / LRV ≈ 18.8%
    2. Molasses - 2818
      #9e6d5c
      ΔE = 4.623 / LRV ≈ 19.0%
  3. Caparol

    1. ★ Tessin 16
      #a86848
      ΔE = 0.954 / LRV ≈ 18.7%
    2. 58 21 37 / Magma 75
      #b07058
      ΔE = 3.863 / LRV ≈ 21.5%
  4. Behr

    1. ★ Smoldering Copper QE-13
      #a2684a
      ΔE = 1.090 / LRV ≈ 18.1%
    2. Desert Clay S250-6
      #9e6e44
      ΔE = 4.817 / LRV ≈ 18.8%
  5. Clark+Kensington

    1. ★ Vivid Sunset / 12A-5
      #a96847
      ΔE = 1.194 / LRV ≈ 18.8%
    2. Spanish Clay / EXTCC-32
      #9e6a46
      ΔE = 2.842 / LRV ≈ 18.0%
  6. Sigma

    1. ★ Orange Terra / FS049
      #a16849
      ΔE = 1.304 / LRV ≈ 18.0%
    2. Orange Terra / S 4040-Y40R
      #a26e45
      ΔE = 3.878 / LRV ≈ 19.3%
  7. Olympic

    1. ★ Ginger Spice C22-5
      #a36a48
      ΔE = 1.318 / LRV ≈ 18.6%
    2. Cinnamon Stick C22-6
      #946244
      ΔE = 4.784 / LRV ≈ 15.5%
  8. GM / General Motors

    1. ★ Mayan Gold
      #aa6847
      ΔE = 1.373 / LRV ≈ 18.9%
    2. Shoreham Beige
      #9d725d
      ΔE = 4.522 / LRV ≈ 20.0%
  9. Volkswagen

    1. ★ Burnished Gold
      #ac6b4b
      ΔE = 1.438 / LRV ≈ 19.8%
  10. Diamond Vogel

    1. ★ Hampton Beach / 1012
      #a16947
      ΔE = 1.691 / LRV ≈ 18.1%
    2. Pretty Parasol / 1039
      #ae674b
      ΔE = 2.732 / LRV ≈ 19.2%
  11. Games Workshop - Citadel

    1. ★ Ratskin Flesh
      #ad6b4c
      ΔE = 1.709 / LRV ≈ 19.9%
    2. Balthasar Gold (Metal)
      #a47552
      ΔE = 4.515 / LRV ≈ 21.2%
  12. Asian Paints

    1. ★ Ethnic Brown / 8589
      #a26946
      ΔE = 1.717 / LRV ≈ 18.2%
    2. Brick Red-N / 0533
      #a5644d
      ΔE = 3.305 / LRV ≈ 17.7%
  13. Kelly-Moore

    1. ★ Warrior King / KM4064-5
      #a16846
      ΔE = 1.720 / LRV ≈ 17.9%
    2. Mars Clay / EC-111
      #9b6d5a
      ΔE = 4.307 / LRV ≈ 18.6%
  14. General Paint

    1. ★ Ahwanee / CL 1577N
      #a96744
      ΔE = 1.722 / LRV ≈ 18.6%
    2. Stradivari / CL 1566A
      #af7155
      ΔE = 3.183 / LRV ≈ 21.6%
  15. Sico

    1. ★ 6120-84 Cape Tourmente
      #a76944
      ΔE = 1.770 / LRV ≈ 18.7%
    2. ★ 6072-73 Chestnut Tree
      #a36a52
      ΔE = 2.163 / LRV ≈ 18.7%
  16. Resene

    1. ★ Sante Fe O61-066-048
      #a96a50
      ΔE = 1.869 / LRV ≈ 19.3%
    2. Tuscany O58-086-050
      #ad6242
      ΔE = 3.539 / LRV ≈ 18.0%
  17. Albany Paint

    1. ★ Briars Wood
      #a76f53
      ΔE = 1.925 / LRV ≈ 20.2%
    2. Cluster
      #ae725b
      ΔE = 4.131 / LRV ≈ 21.8%
  18. Sikkens

    1. ★ D6.35.45
      #aa6c47
      ΔE = 1.944 / LRV ≈ 19.7%
    2. E0.30.50
      #ab7854
      ΔE = 5.175 / LRV ≈ 22.7%
  19. Nippon Paint

    1. ★ Copper Bell / NP R 1387 D
      #9f674c
      ΔE = 2.039 / LRV ≈ 17.6%
    2. Caramel Twirl / NP AC 2140 A
      #ad6c46
      ΔE = 2.449 / LRV ≈ 20.1%
  20. Vallejo

    1. ★ Vallejo 70.929 #129
      #a06950
      ΔE = 2.118 / LRV ≈ 18.2%
    2. Vallejo 70.981 #131
      #99624b
      ΔE = 4.308 / LRV ≈ 16.0%
  21. Crown Diamond

    1. ★ 7247-63 Josephine's Coach
      #a8674d
      ΔE = 2.122 / LRV ≈ 18.6%
    2. 7253-84 Copper Bronze
      #ae6842
      ΔE = 2.774 / LRV ≈ 19.3%
  22. New Look

    1. ★ Cinnamon Swirl / D19-01
      #ab6f4c
      ΔE = 2.190 / LRV ≈ 20.6%
    2. All Spice Delight / G34-09
      #a36c5a
      ΔE = 4.139 / LRV ≈ 19.3%
  23. Pratt & Lambert

    1. ★ Russet 6-23
      #a86741
      ΔE = 2.282 / LRV ≈ 18.4%
    2. Rodeo Tan 6-24
      #b2724c
      ΔE = 3.944 / LRV ≈ 22.0%
  24. Dunn-Edwards

    1. Brown Eyes / 880
      #9e6b4a
      ΔE = 2.408 / LRV ≈ 18.3%
    2. Chic Brick / 952
      #a4725a
      ΔE = 3.475 / LRV ≈ 20.7%
  25. California Paints

    1. DE 5265 - Brown Eyes
      #9e6b4a
      ΔE = 2.408 / LRV ≈ 18.3%
    2. DE 6104 - Chic Brick
      #a4725a
      ΔE = 3.475 / LRV ≈ 20.7%
  26. Plascon

    1. Fiesta Time O2-D1-3
      #a06c54
      ΔE = 2.489 / LRV ≈ 18.8%
    2. Earthling O4-D1-3
      #a07458
      ΔE = 4.199 / LRV ≈ 20.7%
  27. Colortrend

    1. 0039
      #a46952
      ΔE = 2.508 / LRV ≈ 18.6%
    2. 0052
      #a86a57
      ΔE = 3.992 / LRV ≈ 19.3%
  28. Caran d'Ache

    1. 037 Brown Ochre
      #af6c47
      ΔE = 2.565 / LRV ≈ 20.3%
    2. 077 Burnt Ochre
      #b3633a
      ΔE = 4.977 / LRV ≈ 18.8%
  29. Audi

    1. Sienna Brown Metallic / L97Y
      #a06b54
      ΔE = 2.653 / LRV ≈ 18.6%
  30. TRUMATCH

    1. 50-c
      #9e654b
      ΔE = 2.662 / LRV ≈ 17.1%
    2. 50-d3
      #9c725e
      ΔE = 4.795 / LRV ≈ 19.9%
  31. Peintures MF

    1. Feuille de cèdre
      #a26640
      ΔE = 2.679 / LRV ≈ 17.6%
    2. AD119-5
      #9a6c48
      ΔE = 4.081 / LRV ≈ 18.1%
  32. Dulux Australia

    1. Leaf Brown / G49
      #9f6442
      ΔE = 2.688 / LRV ≈ 16.9%
    2. Clay Court / A104
      #a9735d
      ΔE = 4.154 / LRV ≈ 21.5%
  33. Tikkurila

    1. 516X
      #9d6a52
      ΔE = 2.742 / LRV ≈ 18.1%
    2. 4847
      #a67359
      ΔE = 3.429 / LRV ≈ 21.1%
  34. KILZ

    1. Spicy Twist / C531
      #ab6951
      ΔE = 2.799 / LRV ≈ 19.4%
    2. Peach Brandy / C521
      #9f715f
      ΔE = 4.777 / LRV ≈ 20.0%
  35. Humbrol

    1. 62 Leather
      #a56245
      ΔE = 2.849 / LRV ≈ 17.2%
    2. 9 Tan
      #a86135
      ΔE = 4.808 / LRV ≈ 17.1%
  36. Chrysler

    1. Ranch Brown
      #a76750
      ΔE = 2.865 / LRV ≈ 18.5%
    2. Tan
      #9f6a3d
      ΔE = 4.815 / LRV ≈ 18.0%
  37. Brillux

    1. 18.15.21
      #a76940
      ΔE = 2.884 / LRV ≈ 18.7%
    2. 18.12.21
      #a57254
      ΔE = 2.927 / LRV ≈ 20.7%
  38. Coronado Paint

    1. 8598 - Terrific Tan
      #9d6d54
      ΔE = 2.895 / LRV ≈ 18.7%
    2. 8589 - Warrior King
      #af724f
      ΔE = 3.305 / LRV ≈ 21.7%
  39. British Standard

    1. BS 4800 06 C 37 - Leather brown / Brownstone
      #a57255
      ΔE = 2.932 / LRV ≈ 20.7%
    2. BS381 414 - Golden brown
      #9c653e
      ΔE = 3.911 / LRV ≈ 16.7%
  40. Bristol

    1. Fort Apache / P035-W7
      #9f6842
      ΔE = 2.994 / LRV ≈ 17.7%
    2. Gingerbread Man / P034-W7
      #a56c3c
      ΔE = 5.026 / LRV ≈ 19.1%
  41. Vista Paint

    1. Rustic Hills
      #a96348
      ΔE = 3.053 / LRV ≈ 17.8%
    2. Fox Wood
      #a5644d
      ΔE = 3.305 / LRV ≈ 17.7%
  42. Scib Paints

    1. Rustic hills / 8606
      #a96348
      ΔE = 3.053 / LRV ≈ 17.8%
    2. Point Sienna / 8639
      #a46c5d
      ΔE = 5.180 / LRV ≈ 19.4%
  43. Berger

    1. Rustic hills / 8606
      #a96348
      ΔE = 3.053 / LRV ≈ 17.8%
    2. Warrior King / 8589
      #a06339
      ΔE = 4.235 / LRV ≈ 16.7%
  44. Sto

    1. 32241
      #9b6846
      ΔE = 3.089 / LRV ≈ 17.3%
    2. 32340
      #b46442
      ΔE = 4.345 / LRV ≈ 19.2%
  45. PPG Pittsburgh Paints

    1. City Wall Chs-19
      #a57251
      ΔE = 3.100 / LRV ≈ 20.6%
    2. Southern Wood 325-6
      #9f6f59
      ΔE = 3.495 / LRV ≈ 19.5%
  46. Colorhouse

    1. Clay .03
      #a16941
      ΔE = 3.166 / LRV ≈ 18.1%
    2. Wood .02
      #b2683a
      ΔE = 4.894 / LRV ≈ 19.7%
  47. ICI Paints

    1. Clay Pot 50YR 21/318
      #a76751
      ΔE = 3.168 / LRV ≈ 18.5%
    2. 3344 Turkey Umber 80YR 19/378
      #a1643c
      ΔE = 3.539 / LRV ≈ 17.0%
  48. Ford

    1. Golden Bronze
      #a07155
      ΔE = 3.198 / LRV ≈ 19.9%
    2. Manilla Brown
      #966b4f
      ΔE = 4.077 / LRV ≈ 17.6%
  49. Brighto Paints

    1. 4-7-6 Indian Sunset
      #9d6e56
      ΔE = 3.209 / LRV ≈ 19.0%
    2. 9698 Terracotta
      #a5785e
      ΔE = 5.148 / LRV ≈ 22.2%
  50. Dulux

    1. 70YR 19/432
      #ae663f
      ΔE = 3.275 / LRV ≈ 18.9%
    2. 50YR 21/318
      #ad6f59
      ΔE = 3.800 / LRV ≈ 21.0%
  51. Sherwin-Williams

    1. Red Cent - 6341
      #ad654c
      ΔE = 3.462 / LRV ≈ 18.7%
    2. Earthen Jug - 7703
      #a85e39
      ΔE = 4.579 / LRV ≈ 16.6%
  52. Devoe Paint

    1. Bennington Clay / 80YR 19/378
      #a76b40
      ΔE = 3.478 / LRV ≈ 19.1%
    2. Padre Island / 70YR 20/239
      #9e7156
      ΔE = 3.548 / LRV ≈ 19.8%
  53. Dutch Boy

    1. Maharaja Red
      #a56a56
      ΔE = 3.485 / LRV ≈ 19.0%
    2. Red Kidney Bean
      #9e6453
      ΔE = 4.989 / LRV ≈ 17.0%
  54. Porter Paints

    1. Southern Wood / 325-6
      #9f6f59
      ΔE = 3.495 / LRV ≈ 19.5%
    2. Ginger / 320-7
      #9a653c
      ΔE = 4.698 / LRV ≈ 16.5%
  55. Toyo Ink

    1. CF10835
      #9c6650
      ΔE = 3.507 / LRV ≈ 17.2%
  56. CIL

    1. Bennington Clay
      #a46c42
      ΔE = 3.539 / LRV ≈ 19.0%
    2. Soft Copper
      #976d5c
      ΔE = 5.229 / LRV ≈ 18.3%
  57. Benjamin Moore

    1. Ten Gallon Hat / 1210
      #9c6853
      ΔE = 3.575 / LRV ≈ 17.6%
    2. Audubon Russet / HC-51
      #af6c56
      ΔE = 3.895 / LRV ≈ 20.5%
  58. Kansai Paint

    1. Terracotta
      #ab7458
      ΔE = 3.602 / LRV ≈ 21.9%
  59. Valspar Paint

    1. Port
      #a9633b
      ΔE = 3.607 / LRV ≈ 17.7%
    2. Italian Roast
      #9d714a
      ΔE = 5.093 / LRV ≈ 19.5%
  60. Federal Standard

    1. Federal Standard 10115
      #a66e44
      ΔE = 3.645 / LRV ≈ 19.7%
    2. Federal Standard 12160
      #b36647
      ΔE = 3.742 / LRV ≈ 19.5%
  61. Magnolia Home

    1. Work Worn Wood / JG-35
      #b56d4e
      ΔE = 3.646 / LRV ≈ 21.3%
  62. McCormick Paints

    1. Sunbaked Earth
      #ae6241
      ΔE = 3.705 / LRV ≈ 18.1%
  63. Earthpaint

    1. 3-6-6 Arizona Sunset
      #b56b47
      ΔE = 3.709 / LRV ≈ 20.8%
    2. 3-7-6 Carrot Cake
      #b67149
      ΔE = 4.594 / LRV ≈ 22.2%
  64. Laura Ashley

    1. 516 Rustica
      #a0603c
      ΔE = 3.866 / LRV ≈ 16.2%
    2. 45-13 Belvoir Bark
      #996651
      ΔE = 4.080 / LRV ≈ 16.9%
  65. Homebase

    1. Delicious
      #9a6651
      ΔE = 3.957 / LRV ≈ 17.0%
  66. Natural Color System / NCS

    1. S 4030-Y40R
      #a6603a
      ΔE = 3.991 / LRV ≈ 16.8%
    2. S 4020-Y70R
      #a66754
      ΔE = 4.052 / LRV ≈ 18.4%
  67. Alcro

    1. Bishop brown
      #9a623f
      ΔE = 4.009 / LRV ≈ 16.0%
    2. Koppar Metallic
      #9f673c
      ΔE = 4.225 / LRV ≈ 17.4%
  68. Evonik-Degussa

    1. 4093D Copper Bell
      #9a6147
      ΔE = 4.032 / LRV ≈ 15.9%
    2. 416
      #a46c40
      ΔE = 4.071 / LRV ≈ 19.0%
  69. Wattyl

    1. Moroccan Stone / B82W
      #a36c5a
      ΔE = 4.139 / LRV ≈ 19.3%
    2. Cuddly Bear / B83W
      #9a7359
      ΔE = 4.889 / LRV ≈ 19.9%
  70. Taubmans

    1. Vienna Coffee / T12 17.H10
      #986a47
      ΔE = 4.145 / LRV ≈ 17.4%
    2. Rustic Leather / T12 24.G9
      #9c6250
      ΔE = 5.113 / LRV ≈ 16.4%
  71. Farrow & Ball

    1. Porphyry Pink / 49
      #a36856
      ΔE = 4.196 / LRV ≈ 18.4%
    2. Red Earth / 64
      #b86948
      ΔE = 4.469 / LRV ≈ 20.8%
  72. AMC

    1. Aztec Copper
      #a75e3c
      ΔE = 4.294 / LRV ≈ 16.5%
    2. Autumn Brown
      #9b673c
      ΔE = 4.905 / LRV ≈ 17.0%
  73. Cloverdale Paint

    1. Fox Wood / 8614
      #a76d5b
      ΔE = 4.315 / LRV ≈ 19.9%
    2. Pebblestone Clay / 8630
      #b16a57
      ΔE = 5.050 / LRV ≈ 20.3%
  74. Glidden

    1. Copper Beech / PPG1067-5
      #b1715a
      ΔE = 4.371 / LRV ≈ 21.9%
    2. Apple Brown Betty / PPG1062-6
      #9c6757
      ΔE = 5.059 / LRV ≈ 17.5%
  75. Opaltone / OMS

    1. 4169
      #9c6e48
      ΔE = 4.374 / LRV ≈ 18.7%
    2. 4175
      #9d5f4b
      ΔE = 5.215 / LRV ≈ 15.9%
  76. Tollens

    1. T2119-2
      #b86e4a
      ΔE = 4.385 / LRV ≈ 21.8%
    2. T2160-2
      #a9754e
      ΔE = 4.642 / LRV ≈ 21.7%
  77. Duron

    1. Antiquarian Brown
      #a26d41
      ΔE = 4.452 / LRV ≈ 19.0%
  78. Crayola

    1. Blast Off Bronze
      #9f6958
      ΔE = 4.509 / LRV ≈ 18.2%
  79. Levis

    1. Scrapbook Karton
      #a07558
      ΔE = 4.569 / LRV ≈ 20.9%
    2. Real Red Terra
      #b96c43
      ΔE = 5.030 / LRV ≈ 21.4%
  80. Focoltone

    1. 2189
      #a0734f
      ΔE = 4.575 / LRV ≈ 20.3%
    2. 5036
      #9d6553
      ΔE = 4.603 / LRV ≈ 17.1%
  81. Mylands of London

    1. Tan
      #a86451
      ΔE = 4.579 / LRV ≈ 18.0%
  82. Disney

    1. 1C-50-4 Haycorn Brown
      #946545
      ΔE = 4.639 / LRV ≈ 16.0%
  83. Testors

    1. Testors 1241
      #b0764f
      ΔE = 4.901 / LRV ≈ 22.8%
  84. 1829

    1. Burnished Antique Brass
      #b3735c
      ΔE = 4.977 / LRV ≈ 22.6%
  85. Little Greene

    1. Pot Red
      #b5755a
      ΔE = 5.037 / LRV ≈ 23.3%
  86. Vallejo Game Color

    1. Tan (066)
      #a95c3e
      ΔE = 5.042 / LRV ≈ 16.4%
  87. Old Citadel

    1. Tanned Flesh
      #a95c3e
      ΔE = 5.042 / LRV ≈ 16.4%
  88. Reaper Master

    1. Antique Rose (9139)
      #a95c3e
      ΔE = 5.042 / LRV ≈ 16.4%
  89. Graham & Brown

    1. Cape Town
      #ac6958
      ΔE = 5.048 / LRV ≈ 19.6%
  90. Jotun

    1. 2825 / Effekt
      #b06551
      ΔE = 5.049 / LRV ≈ 19.1%
  91. Ralph Lauren

    1. Villa Torlonia / RLVM227
      #99604b
      ΔE = 5.061 / LRV ≈ 15.6%

色覚異常

1色覚

2色型色覚

3色型色覚

HTML&CSS例

#a66a4b前景

覆水盆に帰らず。

<p style="color: #a66a4b">…</p>

#a66a4b背景

美人薄命。

<p style="background-color: #a66a4b">…</p>

#a66a4bテキストに影をつける

猿も木から落ちる。

<p style="text-shadow: 0.1em 0.1em 0.15em #a66a4b">…</p>

構成表

色空間変換

十進
10906187
二進法
10100110, 01101010, 01001011
十六進法
#a66a4b
LRV
≈ 18.9%
最も近い短い16進数
#a64 ΔE = 1.841
RGB
rgb(166, 106, 75)
RGBA
rgba(166, 106, 75, 1.0)
rg色度
r: 0.478, g: 0.305, b: 0.216
RYB
赤色: 65.098%, 黄色: 47.850%, 青色: 29.412%
Android/android.graphics.Color
-5871029/0xffa66a4b
HSL
hsl(20, 38%, 47%)
HSLA
hsla(20, 38%, 47%, 1.0)
HSV/HSB
色相: 20° (20.440), 飽和: 55% (0.548), 値: 65% (0.651)
HSP
色相: 20.440, 飽和: 54.819%, 知覚される明るさ: 48.785%
HSLuv(HUSL)
H: 32.025, S: 59.439, L: 50.599
Cubehelix
H: 14.462, S: 0.519, L: 0.473
TSL
T: 3.515, S: 0.198, L: 0.472
CMYK
シアン色: 0% (0.000), マゼンタ色: 36% (0.361), 黄色: 55% (0.548), キー・プレート: 35% (0.349)
CMY
シアン色: 35% (0.349), マゼンタ色: 58% (0.584), 黄色: 71% (0.706)
XYZ
X: 22.151, Y: 18.925, Z: 9.141
xyY
x: 0.441, y: 0.377, Y: 18.925
Lab色空間
L: 50.599, a: 20.631, b: 27.251
CIELuv
L: 50.599, u: 44.652, v: 27.929
CIELCH/LCHab
L: 50.599, C: 34.180, H: 52.871
CIELUV/LCHuv
L: 50.599, C: 52.667, H: 32.025
Hunter-Lab
L: 43.503, a: 14.761, b: 17.993
CIECAM02
J: 41.509, C: 32.255, h: 47.140, Q: 126.934, M: 28.207, s: 47.140, H: 35.534
OSA-UCS
明度: -9.937, 黄色: 3.845, 緑色: -3.485
LMS
L: 22.878, M: 16.595, S: 9.314
YCbCr
Y: 119.436, Cb: 105.511, Cr: 156.541
YCoCg
Y: 113.250, Cg: -7.250, Co: 64.250
YDbDr
Y: 120.406, Db: -68.323, Dr: -86.707
YPbPr
Y: 116.548, Pb: -22.400, Pr: 31.426
xvYCC
Y: 116.094, Cb: 108.323, Cr: 155.606
YIQ
Y: 120.406, I: 45.702, Q: 3.042
YUV
Y: 120.406, U: -22.343, V: 40.000
マンセルカラーシステム
2.5YR 5/6 ΔE = 1.757
ブランドカラー
WordPress (orange) ΔE = 9.598

ランダム色