#831C1E#831C1E

#831C1E is a dark, vivid red. Relative luminance 0.058; OKLCH L 40.3% C 0.138 H 25.1°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#831C1E
RGB	rgb(131, 28, 30)
HSL	hsl(359, 65%, 31%)
HSV	hsv(359, 79%, 51%)
CMYK	cmyk(0%, 78.6%, 77.1%, 48.6%)
CIE-LAB	lab(28.78, 43.13, 26.15)
CIE-LCH	lch(28.78, 50.44, 31.23°)
OKLab	oklab(40.27% 0.125 0.0586)
OKLCH	oklch(40.27% 0.138 25.1)
XYZ	xyz(10.0108, 5.7511, 1.8110)
Luminance	0.0575 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831C1E #1C8381

analogous

#831C51 #831C1E #834D1C

triadic

#831C1E #1E831C #1C1E83

tetradic

#831C1E #51831C #1C8381 #4D1C83

square

#831C1E #51831C #1C8381 #4D1C83

split-complementary

#831C1E #1C834D #1C5183

monochromatic

#1E0607 #511112 #831C1E #B5272A #D74346

Accessibility & contrast

On white

9.77

#831C1E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#831C1E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831C1E

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831C1E	#FFFFFF	#000000	##FFFFFF
##831C1E	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B361D

Deuteranopia (green-blind)

#554C1A

Tritanopia (blue-blind)

#91001E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #831c1e;
/* rgb */ color: rgb(131, 28, 30);
/* oklch */ color: oklch(40.3% 0.138 25.1);

Tailwind

colors: {
  custom: {
    50: '#af625a',
    500: '#831c1e',
    950: '#000000',
  },
}

SCSS

$custom: #831c1e;
$custom-light: #af625a;
$custom-dark: #000000;

JSON

{
  "hex": "#831c1e",
  "rgb": {
    "r": 131,
    "g": 28,
    "b": 30
  },
  "hsl": {
    "h": 358.835,
    "s": 64.78,
    "l": 31.176
  },
  "oklch": {
    "l": 0.40267,
    "c": 0.13806,
    "h": 25.1
  },
  "luminance": 0.0575
}

Semantic roles & 50–950 ramp

primary

#831C1E

secondary

#45B6B4

accent

#E8E540

background

#FBF6F5

surface

#F6EBE9

border

#D0C6C5

text

#120603

muted

#817A78

Preview Lab

Preview with #831C1E

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

Preview Lab → · Contrast checker → · Palette generator →