#831D1E#831D1E

#831D1E is a dark, vivid red. Relative luminance 0.058; OKLCH L 40.4% C 0.137 H 25.4°. Best body text is #FFFFFF at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#831D1E
RGB	rgb(131, 29, 30)
HSL	hsl(359, 64%, 31%)
HSV	hsv(359, 78%, 51%)
CMYK	cmyk(0%, 77.9%, 77.1%, 48.6%)
CIE-LAB	lab(28.90, 42.78, 26.29)
CIE-LCH	lch(28.90, 50.21, 31.57°)
OKLab	oklab(40.36% 0.1239 0.0589)
OKLCH	oklch(40.36% 0.137 25.4)
XYZ	xyz(10.0350, 5.7993, 1.8190)
Luminance	0.0580 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831D1E #1D8382

analogous

#831D51 #831D1E #834F1D

triadic

#831D1E #1E831D #1D1E83

tetradic

#831D1E #51831D #1D8382 #4F1D83

square

#831D1E #51831D #1D8382 #4F1D83

split-complementary

#831D1E #1D834F #1D5183

monochromatic

#1F0707 #511213 #831D1E #B52829 #D64546

Accessibility & contrast

On white

9.72

#831D1E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#831D1E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831D1E

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831D1E	#FFFFFF	#000000	##FFFFFF
##831D1E	1.00	9.72	2.16	9.72
#FFFFFF	9.72	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C361D

Deuteranopia (green-blind)

#554C1A

Tritanopia (blue-blind)

#91001F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #831d1e;
/* rgb */ color: rgb(131, 29, 30);
/* oklch */ color: oklch(40.4% 0.137 25.4);

Tailwind

colors: {
  custom: {
    50: '#af625a',
    500: '#831d1e',
    950: '#000000',
  },
}

SCSS

$custom: #831d1e;
$custom-light: #af625a;
$custom-dark: #000000;

JSON

{
  "hex": "#831d1e",
  "rgb": {
    "r": 131,
    "g": 29,
    "b": 30
  },
  "hsl": {
    "h": 359.412,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.4036,
    "c": 0.1372,
    "h": 25.4
  },
  "luminance": 0.05798
}

Semantic roles & 50–950 ramp

primary

#831D1E

secondary

#46B6B5

accent

#E7E541

background

#FBF6F5

surface

#F6EBE9

border

#D0C6C5

text

#120603

muted

#817A78

Preview Lab

Preview with #831D1E

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

Preview Lab → · Contrast checker → · Palette generator →