#831D18#831D18

#831D18 is a dark, vivid red. Relative luminance 0.058; OKLCH L 40.3% C 0.138 H 28.0°. Best body text is #FFFFFF at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#831D18
RGB	rgb(131, 29, 24)
HSL	hsl(3, 69%, 30%)
HSV	hsv(3, 82%, 51%)
CMYK	cmyk(0%, 77.9%, 81.7%, 48.6%)
CIE-LAB	lab(28.83, 42.54, 29.85)
CIE-LCH	lch(28.83, 51.97, 35.05°)
OKLab	oklab(40.28% 0.1218 0.0649)
OKLCH	oklch(40.28% 0.138 28)
XYZ	xyz(9.9655, 5.7715, 1.4533)
Luminance	0.0577 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831D18 #187E83

analogous

#831848 #831D18 #835318

triadic

#831D18 #18831D #1D1883

tetradic

#831D18 #488318 #187E83 #531883

square

#831D18 #488318 #187E83 #531883

split-complementary

#831D18 #188353 #184883

monochromatic

#1C0605 #4F120F #831D18 #B72821 #DB423A

Accessibility & contrast

On white

9.75

#831D18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#831D18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831D18

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831D18	#FFFFFF	#000000	##FFFFFF
##831D18	1.00	9.75	2.15	9.75
#FFFFFF	9.75	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C3616

Deuteranopia (green-blind)

#554C13

Tritanopia (blue-blind)

#91001D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #831d18;
/* rgb */ color: rgb(131, 29, 24);
/* oklch */ color: oklch(40.3% 0.138 28.0);

Tailwind

colors: {
  custom: {
    50: '#af6255',
    500: '#831d18',
    950: '#000000',
  },
}

SCSS

$custom: #831d18;
$custom-light: #af6255;
$custom-dark: #000000;

JSON

{
  "hex": "#831d18",
  "rgb": {
    "r": 131,
    "g": 29,
    "b": 24
  },
  "hsl": {
    "h": 2.804,
    "s": 69.032,
    "l": 30.392
  },
  "oklch": {
    "l": 0.40284,
    "c": 0.13801,
    "h": 28
  },
  "luminance": 0.0577
}

Semantic roles & 50–950 ramp

primary

#831D18

secondary

#40B1B7

accent

#E4EC3C

background

#FBF6F5

surface

#F6EBE9

border

#D0C6C5

text

#120603

muted

#817A78

Preview Lab

Preview with #831D18

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

Preview Lab → · Contrast checker → · Palette generator →