#831710#831710

#831710 is a dark, vivid red. Relative luminance 0.055; OKLCH L 39.7% C 0.144 H 29.1°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#831710
RGB	rgb(131, 23, 16)
HSL	hsl(4, 78%, 29%)
HSV	hsv(4, 88%, 51%)
CMYK	cmyk(0%, 82.4%, 87.8%, 48.6%)
CIE-LAB	lab(28.05, 44.27, 33.61)
CIE-LCH	lch(28.05, 55.58, 37.21°)
OKLab	oklab(39.68% 0.1256 0.07)
OKLCH	oklch(39.68% 0.144 29.1)
XYZ	xyz(9.7612, 5.4771, 1.0333)
Luminance	0.0548 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831710 #107C83

analogous

#831043 #831710 #835110

triadic

#831710 #108317 #171083

tetradic

#831710 #438310 #107C83 #511083

square

#831710 #438310 #107C83 #511083

split-complementary

#831710 #108351 #104383

monochromatic

#1B0503 #4C0D09 #831710 #BA2117 #E53429

Accessibility & contrast

On white

10.02

#831710 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#831710 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831710

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831710	#FFFFFF	#000000	##FFFFFF
##831710	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A330D

Deuteranopia (green-blind)

#544B09

Tritanopia (blue-blind)

#910017

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #831710;
/* rgb */ color: rgb(131, 23, 16);
/* oklch */ color: oklch(39.7% 0.144 29.1);

Tailwind

colors: {
  custom: {
    50: '#b06050',
    500: '#831710',
    950: '#000000',
  },
}

SCSS

$custom: #831710;
$custom-light: #b06050;
$custom-dark: #000000;

JSON

{
  "hex": "#831710",
  "rgb": {
    "r": 131,
    "g": 23,
    "b": 16
  },
  "hsl": {
    "h": 3.652,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.39683,
    "c": 0.14377,
    "h": 29.1
  },
  "luminance": 0.05475
}

Semantic roles & 50–950 ramp

primary

#831710

secondary

#36B1B9

accent

#E9F533

background

#FBF5F4

surface

#F7EAE7

border

#D0C6C3

text

#120502

muted

#817978

Preview Lab

Preview with #831710

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

Preview Lab → · Contrast checker → · Palette generator →