#831D2A#831D2A

#831D2A is a dark, vivid red. Relative luminance 0.059; OKLCH L 40.6% C 0.136 H 19.1°. Best body text is #FFFFFF at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#831D2A
RGB	rgb(131, 29, 42)
HSL	hsl(352, 64%, 31%)
HSV	hsv(352, 78%, 51%)
CMYK	cmyk(0%, 77.9%, 67.9%, 48.6%)
CIE-LAB	lab(29.09, 43.40, 18.81)
CIE-LCH	lch(29.09, 47.30, 23.43°)
OKLab	oklab(40.56% 0.1286 0.0446)
OKLCH	oklch(40.56% 0.136 19.1)
XYZ	xyz(10.2185, 5.8727, 2.7855)
Luminance	0.0587 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831D2A #1D8376

analogous

#831D5D #831D2A #83431D

triadic

#831D2A #2A831D #1D2A83

tetradic

#831D2A #5D831D #1D8376 #431D83

square

#831D2A #5D831D #1D8376 #431D83

split-complementary

#831D2A #1D8343 #1D5D83

monochromatic

#1F070A #51121A #831D2A #B5283A #D64557

Accessibility & contrast

On white

9.66

#831D2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#831D2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831D2A

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831D2A	#FFFFFF	#000000	##FFFFFF
##831D2A	1.00	9.66	2.17	9.66
#FFFFFF	9.66	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A372A

Deuteranopia (green-blind)

#544C27

Tritanopia (blue-blind)

#900023

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #831d2a;
/* rgb */ color: rgb(131, 29, 42);
/* oklch */ color: oklch(40.6% 0.136 19.1);

Tailwind

colors: {
  custom: {
    50: '#ae6363',
    500: '#831d2a',
    950: '#000000',
  },
}

SCSS

$custom: #831d2a;
$custom-light: #ae6363;
$custom-dark: #000000;

JSON

{
  "hex": "#831d2a",
  "rgb": {
    "r": 131,
    "g": 29,
    "b": 42
  },
  "hsl": {
    "h": 352.353,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.40561,
    "c": 0.13616,
    "h": 19.1
  },
  "luminance": 0.05871
}

Semantic roles & 50–950 ramp

primary

#831D2A

secondary

#46B6A8

accent

#E7D241

background

#FBF6F5

surface

#F6EBEA

border

#D0C6C6

text

#120605

muted

#817A79

Preview Lab

Preview with #831D2A

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

Preview Lab → · Contrast checker → · Palette generator →