ColorTool
Log in
#51170B

#51170b ≈ Caput Mortuum

  • red
  • Lightness: very low
  • Saturation: moderate
  • Warm
Check contrast Explore in graph Random color

#51170b is a color from the red family, with very low lightness and moderate saturation. In the RGB model it is made of 31.76% red, 9.02% green and 4.31% blue; printed in CMYK it uses 0% cyan, 71.6% magenta, 86.42% yellow and 68.24% black. Its hue angle is 10.29°, with 76.09% saturation and 18.04% 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 14.22:1 (WCAG AAA). The closest named color is Caput Mortuum (#592720), ΔE 4.99.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#660000
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0239

Complementary

  1. #51170b
  2. #0b4551

Split complementary

  1. #51170b
  2. #0b513a
  3. #0b2251

Analogous

  1. #510b22
  2. #51170b
  3. #513a0b

Triadic

  1. #51170b
  2. #0b5117
  3. #170b51

Tetradic

  1. #51170b
  2. #45510b
  3. #0b4551
  4. #170b51

Square

  1. #51170b
  2. #22510b
  3. #0b4551
  4. #3a0b51

Monochromatic

  1. #120502
  2. #120502
  3. #51170b
  4. #942a14
  5. #d83d1d

Shades

#51170b mixed progressively with black.

  1. #51170b
  2. #49150a
  3. #411209
  4. #391008
  5. #310e07
  6. #290c06
  7. #200904
  8. #180703
  9. #100502
  10. #080201
  11. #000000

Tints

#51170b mixed progressively with white.

  1. #51170b
  2. #622e23
  3. #74453c
  4. #855d54
  5. #97746d
  6. #a88b85
  7. #b9a29d
  8. #cbb9b6
  9. #dcd1ce
  10. #eee8e7
  11. #ffffff

Tones

#51170b mixed progressively with gray.

  1. #51170b
  2. #562217
  3. #5a2c22
  4. #5f372e
  5. #64413a
  6. #694c46
  7. #6d5651
  8. #72615d
  9. #776b69
  10. #7b7674
  11. #808080

Readable text 14.22:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 1.48:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #2b2b2b ≈ 0.003% of males
Achromatomaly #3d2422 ≈ 0.001% of males
Protanopia #282309 ≈ 1.01% of males
Deuteranopia #362f09 ≈ 1.27% of males
Tritanopia #5a0715 ≈ 0.0001% of males
Protanomaly #3c1e0a ≈ 1.08% of males
Deuteranomaly #42280a ≈ 4.63% of males
Tritanomaly #560f11 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-51170b {
  color: #51170b;
}
Background
.bg-51170b {
  background-color: #51170b;
  color: #ffffff;
}
Border
.border-51170b {
  border: 2px solid #51170b;
}
CSS variables
:root {
  --color-primary: #51170b;
  --color-primary-rgb: 81 23 11;
  --color-primary-hsl: 10 76% 18%;
}
Gradient
.gradient-51170b {
  background: linear-gradient(135deg, #51170b, #513a0b);
}
Colored shadow
.shadow-51170b {
  box-shadow: 0 8px 24px rgb(81 23 11 / 0.35);
}

#592720 Caput Mortuum ΔE 4.99 #65000b Rosewood ΔE 6.31 #801818 Falu Red ΔE 9.89 #800000 Maroon ΔE 10.35 #800020 Burgundy ΔE 11.73 #722f37 Wine ΔE 12.18 #882d17 Kobe ΔE 12.28 #aee8f4 Inverted #2b2b2b Grayscale 

Caput Mortuum
#51170b  rgb(81, 23, 11)  hsl(10, 76%, 18%)  Caput Mortuum
#0b4551  rgb(11, 69, 81)  hsl(190, 76%, 18%)  Midnight Green
#0b5117  rgb(11, 81, 23)  hsl(130, 76%, 18%)  Lincoln Green
#170b51  rgb(23, 11, 81)  hsl(250, 76%, 18%)  Midnight Blue