#81131D#81131D

#81131D is a dark, vivid red. Relative luminance 0.052; OKLCH L 39.1% C 0.143 H 23.1°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#81131D
RGB	rgb(129, 19, 29)
HSL	hsl(355, 74%, 29%)
HSV	hsv(355, 85%, 51%)
CMYK	cmyk(0%, 85.3%, 77.5%, 49.4%)
CIE-LAB	lab(27.36, 45.21, 25.07)
CIE-LCH	lch(27.36, 51.70, 29.01°)
OKLab	oklab(39.14% 0.1317 0.0562)
OKLCH	oklch(39.14% 0.143 23.1)
XYZ	xyz(9.5090, 5.2231, 1.6696)
Luminance	0.0522 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81131D #138177

analogous

#811354 #81131D #814013

triadic

#81131D #1D8113 #131D81

tetradic

#81131D #548113 #138177 #401381

square

#81131D #548113 #138177 #401381

split-complementary

#81131D #138140 #135481

monochromatic

#1B0406 #4C0B11 #81131D #B61B29 #E02E3E

Accessibility & contrast

On white

10.27

#81131D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#81131D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #81131D

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81131D	#FFFFFF	#000000	##FFFFFF
##81131D	1.00	10.27	2.04	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#37321C

Deuteranopia (green-blind)

#524919

Tritanopia (blue-blind)

#8F0018

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #81131d;
/* rgb */ color: rgb(129, 19, 29);
/* oklch */ color: oklch(39.1% 0.143 23.1);

Tailwind

colors: {
  custom: {
    50: '#ae5e59',
    500: '#81131d',
    950: '#000000',
  },
}

SCSS

$custom: #81131d;
$custom-light: #ae5e59;
$custom-dark: #000000;

JSON

{
  "hex": "#81131d",
  "rgb": {
    "r": 129,
    "g": 19,
    "b": 29
  },
  "hsl": {
    "h": 354.545,
    "s": 74.324,
    "l": 29.02
  },
  "oklch": {
    "l": 0.39138,
    "c": 0.14313,
    "h": 23.1
  },
  "luminance": 0.05222
}

Semantic roles & 50–950 ramp

primary

#81131D

secondary

#3AB6AB

accent

#F1E037

background

#FBF5F5

surface

#F6EAE9

border

#D0C6C5

text

#120503

muted

#817978

Preview Lab

Preview with #81131D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →