#83311B#83311B

#83311B is a dark, moderate red. Relative luminance 0.071; OKLCH L 42.7% C 0.118 H 35.8°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#83311B
RGB	rgb(131, 49, 27)
HSL	hsl(13, 66%, 31%)
HSV	hsv(13, 79%, 51%)
CMYK	cmyk(0%, 62.6%, 79.4%, 48.6%)
CIE-LAB	lab(32.04, 34.04, 31.44)
CIE-LCH	lch(32.04, 46.34, 42.73°)
OKLab	oklab(42.7% 0.0959 0.0693)
OKLCH	oklch(42.7% 0.118 35.8)
XYZ	xyz(10.6574, 7.1025, 1.8464)
Luminance	0.0710 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#83311B #1B6D83

analogous

#831B39 #83311B #83651B

triadic

#83311B #1B8331 #311B83

tetradic

#83311B #39831B #1B6D83 #651B83

square

#83311B #39831B #1B6D83 #651B83

split-complementary

#83311B #1B8365 #1B3983

monochromatic

#1E0B06 #501E11 #83311B #B64425 #D86141

Accessibility & contrast

On white

8.68

#83311B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#83311B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #83311B

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##83311B	#FFFFFF	#000000	##FFFFFF
##83311B	1.00	8.68	2.42	8.68
#FFFFFF	8.68	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484018

Deuteranopia (green-blind)

#5C5218

Tritanopia (blue-blind)

#901D2C

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #83311b;
/* rgb */ color: rgb(131, 49, 27);
/* oklch */ color: oklch(42.7% 0.118 35.8);

Tailwind

colors: {
  custom: {
    50: '#ae6c59',
    500: '#83311b',
    950: '#000000',
  },
}

SCSS

$custom: #83311b;
$custom-light: #ae6c59;
$custom-dark: #000000;

JSON

{
  "hex": "#83311b",
  "rgb": {
    "r": 131,
    "g": 49,
    "b": 27
  },
  "hsl": {
    "h": 12.692,
    "s": 65.823,
    "l": 30.98
  },
  "oklch": {
    "l": 0.42703,
    "c": 0.11835,
    "h": 35.8
  },
  "luminance": 0.07101
}

Semantic roles & 50–950 ramp

primary

#83311B

secondary

#439EB6

accent

#C5E93F

background

#FBF6F5

surface

#F6ECE9

border

#D0C7C5

text

#120703

muted

#817A78

Preview Lab

Preview with #83311B

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

Preview Lab → · Contrast checker → · Palette generator →