#831810#831810

#831810 is a dark, vivid red. Relative luminance 0.055; OKLCH L 39.8% C 0.143 H 29.4°. Best body text is #FFFFFF at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#831810
RGB	rgb(131, 24, 16)
HSL	hsl(4, 78%, 29%)
HSV	hsv(4, 88%, 51%)
CMYK	cmyk(0%, 81.7%, 87.8%, 48.6%)
CIE-LAB	lab(28.16, 43.96, 33.70)
CIE-LCH	lch(28.16, 55.39, 37.48°)
OKLab	oklab(39.76% 0.1246 0.0702)
OKLCH	oklch(39.76% 0.143 29.4)
XYZ	xyz(9.7815, 5.5176, 1.0401)
Luminance	0.0552 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831810 #107B83

analogous

#831042 #831810 #835210

triadic

#831810 #108318 #181083

tetradic

#831810 #428310 #107B83 #521083

square

#831810 #428310 #107B83 #521083

split-complementary

#831810 #108352 #104283

monochromatic

#1B0503 #4C0E09 #831810 #BA2217 #E53629

Accessibility & contrast

On white

9.98

#831810 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#831810 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831810

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831810	#FFFFFF	#000000	##FFFFFF
##831810	1.00	9.98	2.10	9.98
#FFFFFF	9.98	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B330D

Deuteranopia (green-blind)

#554B09

Tritanopia (blue-blind)

#910018

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #831810;
/* rgb */ color: rgb(131, 24, 16);
/* oklch */ color: oklch(39.8% 0.143 29.4);

Tailwind

colors: {
  custom: {
    50: '#b06050',
    500: '#831810',
    950: '#000000',
  },
}

SCSS

$custom: #831810;
$custom-light: #b06050;
$custom-dark: #000000;

JSON

{
  "hex": "#831810",
  "rgb": {
    "r": 131,
    "g": 24,
    "b": 16
  },
  "hsl": {
    "h": 4.174,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.39763,
    "c": 0.14304,
    "h": 29.4
  },
  "luminance": 0.05516
}

Semantic roles & 50–950 ramp

primary

#831810

secondary

#36B0B9

accent

#E7F533

background

#FBF6F4

surface

#F7EBE7

border

#D0C6C3

text

#120502

muted

#817A78

Preview Lab

Preview with #831810

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

Preview Lab → · Contrast checker → · Palette generator →