#81231D#81231D

#81231D is a dark, vivid red. Relative luminance 0.060; OKLCH L 40.6% C 0.130 H 28.0°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#81231D
RGB	rgb(129, 35, 29)
HSL	hsl(4, 63%, 31%)
HSV	hsv(4, 78%, 51%)
CMYK	cmyk(0%, 72.9%, 77.5%, 49.4%)
CIE-LAB	lab(29.31, 39.77, 27.24)
CIE-LCH	lch(29.31, 48.21, 34.41°)
OKLab	oklab(40.59% 0.1144 0.0609)
OKLCH	oklch(40.59% 0.13 28)
XYZ	xyz(9.8772, 5.9594, 1.7924)
Luminance	0.0596 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81231D #1D7B81

analogous

#811D49 #81231D #81551D

triadic

#81231D #1D8123 #231D81

tetradic

#81231D #49811D #1D7B81 #551D81

square

#81231D #49811D #1D7B81 #551D81

split-complementary

#81231D #1D8155 #1D4981

monochromatic

#1D0807 #4F1512 #81231D #B33128 #D54C44

Accessibility & contrast

On white

9.58

#81231D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#81231D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #81231D

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81231D	#FFFFFF	#000000	##FFFFFF
##81231D	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E381B

Deuteranopia (green-blind)

#564D1A

Tritanopia (blue-blind)

#8E0122

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #81231d;
/* rgb */ color: rgb(129, 35, 29);
/* oklch */ color: oklch(40.6% 0.130 28.0);

Tailwind

colors: {
  custom: {
    50: '#ad6559',
    500: '#81231d',
    950: '#000000',
  },
}

SCSS

$custom: #81231d;
$custom-light: #ad6559;
$custom-dark: #000000;

JSON

{
  "hex": "#81231d",
  "rgb": {
    "r": 129,
    "g": 35,
    "b": 29
  },
  "hsl": {
    "h": 3.6,
    "s": 63.291,
    "l": 30.98
  },
  "oklch": {
    "l": 0.40588,
    "c": 0.12963,
    "h": 28
  },
  "luminance": 0.05958
}

Semantic roles & 50–950 ramp

primary

#81231D

secondary

#46AEB4

accent

#DCE641

background

#FBF6F5

surface

#F6EBE9

border

#D0C6C5

text

#120603

muted

#817A78

Preview Lab

Preview with #81231D

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

Preview Lab → · Contrast checker → · Palette generator →