#831C2B#831C2B

#831C2B is a dark, vivid red. Relative luminance 0.058; OKLCH L 40.5% C 0.137 H 18.3°. Best body text is #FFFFFF at 9.70:1 contrast (WCAG AA passes).

Color values

HEX	#831C2B
RGB	rgb(131, 28, 43)
HSL	hsl(351, 65%, 31%)
HSV	hsv(351, 79%, 51%)
CMYK	cmyk(0%, 78.6%, 67.2%, 48.6%)
CIE-LAB	lab(28.98, 43.81, 18.02)
CIE-LCH	lch(28.98, 47.37, 22.36°)
OKLab	oklab(40.49% 0.1302 0.043)
OKLCH	oklch(40.49% 0.137 18.3)
XYZ	xyz(10.2125, 5.8318, 2.8729)
Luminance	0.0583 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831C2B #1C8374

analogous

#831C5E #831C2B #83401C

triadic

#831C2B #2B831C #1C2B83

tetradic

#831C2B #5E831C #1C8374 #401C83

square

#831C2B #5E831C #1C8374 #401C83

split-complementary

#831C2B #1C8340 #1C5E83

monochromatic

#1E060A #51111A #831C2B #B5273C #D74358

Accessibility & contrast

On white

9.70

#831C2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#831C2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831C2B

9.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831C2B	#FFFFFF	#000000	##FFFFFF
##831C2B	1.00	9.70	2.17	9.70
#FFFFFF	9.70	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A362B

Deuteranopia (green-blind)

#544C28

Tritanopia (blue-blind)

#900023

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #831c2b;
/* rgb */ color: rgb(131, 28, 43);
/* oklch */ color: oklch(40.5% 0.137 18.3);

Tailwind

colors: {
  custom: {
    50: '#ae6264',
    500: '#831c2b',
    950: '#000000',
  },
}

SCSS

$custom: #831c2b;
$custom-light: #ae6264;
$custom-dark: #000000;

JSON

{
  "hex": "#831c2b",
  "rgb": {
    "r": 131,
    "g": 28,
    "b": 43
  },
  "hsl": {
    "h": 351.262,
    "s": 64.78,
    "l": 31.176
  },
  "oklch": {
    "l": 0.40489,
    "c": 0.13708,
    "h": 18.3
  },
  "luminance": 0.0583
}

Semantic roles & 50–950 ramp

primary

#831C2B

secondary

#45B6A6

accent

#E8CF40

background

#FBF6F5

surface

#F6EBEA

border

#D0C6C6

text

#120605

muted

#817A79

Preview Lab

Preview with #831C2B

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

Preview Lab → · Contrast checker → · Palette generator →