#831D10#831D10

#831D10 is a dark, vivid red. Relative luminance 0.057; OKLCH L 40.2% C 0.139 H 30.9°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#831D10
RGB	rgb(131, 29, 16)
HSL	hsl(7, 78%, 29%)
HSV	hsv(7, 88%, 51%)
CMYK	cmyk(0%, 77.9%, 87.8%, 48.6%)
CIE-LAB	lab(28.75, 42.30, 34.22)
CIE-LCH	lch(28.75, 54.41, 38.97°)
OKLab	oklab(40.21% 0.1194 0.0714)
OKLCH	oklch(40.21% 0.139 30.9)
XYZ	xyz(9.8942, 5.7430, 1.0777)
Luminance	0.0574 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831D10 #107683

analogous

#83103D #831D10 #835710

triadic

#831D10 #10831D #1D1083

tetradic

#831D10 #3D8310 #107683 #571083

square

#831D10 #3D8310 #107683 #571083

split-complementary

#831D10 #108357 #103D83

monochromatic

#1B0603 #4C1109 #831D10 #BA2917 #E53E29

Accessibility & contrast

On white

9.78

#831D10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#831D10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831D10

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831D10	#FFFFFF	#000000	##FFFFFF
##831D10	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D350D

Deuteranopia (green-blind)

#564C09

Tritanopia (blue-blind)

#91001B

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #831d10;
/* rgb */ color: rgb(131, 29, 16);
/* oklch */ color: oklch(40.2% 0.139 30.9);

Tailwind

colors: {
  custom: {
    50: '#b06250',
    500: '#831d10',
    950: '#000000',
  },
}

SCSS

$custom: #831d10;
$custom-light: #b06250;
$custom-dark: #000000;

JSON

{
  "hex": "#831d10",
  "rgb": {
    "r": 131,
    "g": 29,
    "b": 16
  },
  "hsl": {
    "h": 6.783,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.40205,
    "c": 0.13916,
    "h": 30.9
  },
  "luminance": 0.05741
}

Semantic roles & 50–950 ramp

primary

#831D10

secondary

#36AAB9

accent

#DFF533

background

#FBF6F4

surface

#F7EBE7

border

#D0C6C3

text

#120502

muted

#817A78

Preview Lab

Preview with #831D10

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

Preview Lab → · Contrast checker → · Palette generator →