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#31100A

#31100a ≈ Caput Mortuum

  • red
  • Lightness: very low
  • Saturation: muted
  • Warm
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#31100a is a color from the red family, with very low lightness and muted saturation. In the RGB model it is made of 19.22% red, 6.27% green and 3.92% blue; printed in CMYK it uses 0% cyan, 67.35% magenta, 79.59% yellow and 80.78% black. Its hue angle is 9.23°, with 66.1% saturation and 11.57% lightness in HSL. It is a warm color, often associated with energy, passion and urgency. Designers typically use it for food and restaurant brands, sales and promotions and luxury branding. White text on this color reaches a contrast ratio of 17.37:1 (WCAG AAA). The closest named color is Caput Mortuum (#592720), ΔE 9.7.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#330000
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0105

Complementary

  1. #31100a
  2. #0a2b31

Split complementary

  1. #31100a
  2. #0a3124
  3. #0a1831

Analogous

  1. #310a18
  2. #31100a
  3. #31240a

Triadic

  1. #31100a
  2. #0a3110
  3. #100a31

Tetradic

  1. #31100a
  2. #2b310a
  3. #0a2b31
  4. #100a31

Square

  1. #31100a
  2. #18310a
  3. #0a2b31
  4. #240a31

Monochromatic

  1. #110603
  2. #110603
  3. #31100a
  4. #712517
  5. #b03924

Shades

#31100a mixed progressively with black.

  1. #31100a
  2. #2c0e09
  3. #270d08
  4. #220b07
  5. #1d0a06
  6. #190805
  7. #140604
  8. #0f0503
  9. #0a0302
  10. #050201
  11. #000000

Tints

#31100a mixed progressively with white.

  1. #31100a
  2. #462823
  3. #5a403b
  4. #6f5854
  5. #83706c
  6. #988885
  7. #ad9f9d
  8. #c1b7b6
  9. #d6cfce
  10. #eae7e7
  11. #ffffff

Tones

#31100a mixed progressively with gray.

  1. #31100a
  2. #391b16
  3. #412622
  4. #49322d
  5. #513d39
  6. #594845
  7. #605351
  8. #685e5d
  9. #706a68
  10. #787574
  11. #808080

Readable text 17.37:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 1.21:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #1a1a1a ≈ 0.003% of males
Achromatomaly #251715 ≈ 0.001% of males
Protanopia #191609 ≈ 1.01% of males
Deuteranopia #211d09 ≈ 1.27% of males
Tritanopia #37090f ≈ 0.0001% of males
Protanomaly #24140a ≈ 1.08% of males
Deuteranomaly #28180a ≈ 4.63% of males
Tritanomaly #340c0d ≈ 0.0002% of males
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Text in this color

Background in this color

Border in this color

Text color
.text-31100a {
  color: #31100a;
}
Background
.bg-31100a {
  background-color: #31100a;
  color: #ffffff;
}
Border
.border-31100a {
  border: 2px solid #31100a;
}
CSS variables
:root {
  --color-primary: #31100a;
  --color-primary-rgb: 49 16 10;
  --color-primary-hsl: 9 66% 12%;
}
Gradient
.gradient-31100a {
  background: linear-gradient(135deg, #31100a, #31240a);
}
Colored shadow
.shadow-31100a {
  box-shadow: 0 8px 24px rgb(49 16 10 / 0.35);
}

#592720 Caput Mortuum ΔE 9.70 #3d2b1f Bistre ΔE 11.16 #1a1110 Licorice ΔE 11.81 #65000b Rosewood ΔE 13.17 #100c08 Smoky Black ΔE 15.62 #722f37 Wine ΔE 15.70 #483c32 Taupe ΔE 16.55 #ceeff5 Inverted #1a1a1a Grayscale 

Caput Mortuum
#31100a  rgb(49, 16, 10)  hsl(9, 66%, 12%)  Caput Mortuum
#0a2b31  rgb(10, 43, 49)  hsl(189, 66%, 12%)  Gunmetal
#0a3110  rgb(10, 49, 16)  hsl(129, 66%, 12%)  Phthalo Green
#100a31  rgb(16, 10, 49)  hsl(249, 66%, 12%)  Oxford Blue