#831F10#831F10

#831F10 is a dark, vivid red. Relative luminance 0.058; OKLCH L 40.4% C 0.138 H 31.5°. Best body text is #FFFFFF at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#831F10
RGB	rgb(131, 31, 16)
HSL	hsl(8, 78%, 29%)
HSV	hsv(8, 88%, 51%)
CMYK	cmyk(0%, 76.3%, 87.8%, 48.6%)
CIE-LAB	lab(29.02, 41.57, 34.45)
CIE-LCH	lch(29.02, 53.99, 39.65°)
OKLab	oklab(40.4% 0.1172 0.0719)
OKLCH	oklch(40.4% 0.138 31.5)
XYZ	xyz(9.9448, 5.8443, 1.0945)
Luminance	0.0584 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831F10 #107483

analogous

#83103B #831F10 #835910

triadic

#831F10 #10831F #1F1083

tetradic

#831F10 #3B8310 #107483 #591083

square

#831F10 #3B8310 #107483 #591083

split-complementary

#831F10 #108359 #103B83

monochromatic

#1B0603 #4C1209 #831F10 #BA2C17 #E54129

Accessibility & contrast

On white

9.68

#831F10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#831F10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831F10

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831F10	#FFFFFF	#000000	##FFFFFF
##831F10	1.00	9.68	2.17	9.68
#FFFFFF	9.68	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E360D

Deuteranopia (green-blind)

#564C0A

Tritanopia (blue-blind)

#91001D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #831f10;
/* rgb */ color: rgb(131, 31, 16);
/* oklch */ color: oklch(40.4% 0.138 31.5);

Tailwind

colors: {
  custom: {
    50: '#b06350',
    500: '#831f10',
    950: '#000000',
  },
}

SCSS

$custom: #831f10;
$custom-light: #b06350;
$custom-dark: #000000;

JSON

{
  "hex": "#831f10",
  "rgb": {
    "r": 131,
    "g": 31,
    "b": 16
  },
  "hsl": {
    "h": 7.826,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.404,
    "c": 0.1375,
    "h": 31.5
  },
  "luminance": 0.05843
}

Semantic roles & 50–950 ramp

primary

#831F10

secondary

#36A8B9

accent

#DBF533

background

#FBF6F4

surface

#F7EBE7

border

#D0C6C3

text

#120602

muted

#817A78

Preview Lab

Preview with #831F10

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

Preview Lab → · Contrast checker → · Palette generator →