#831F31#831F31

#831F31 is a dark, vivid red. Relative luminance 0.060; OKLCH L 40.9% C 0.134 H 15.5°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#831F31
RGB	rgb(131, 31, 49)
HSL	hsl(349, 62%, 32%)
HSV	hsv(349, 76%, 51%)
CMYK	cmyk(0%, 76.3%, 62.6%, 48.6%)
CIE-LAB	lab(29.48, 43.14, 14.70)
CIE-LCH	lch(29.48, 45.58, 18.82°)
OKLab	oklab(40.9% 0.1293 0.0359)
OKLCH	oklch(40.9% 0.134 15.5)
XYZ	xyz(10.4055, 6.0285, 3.5208)
Luminance	0.0603 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831F31 #1F8371

analogous

#831F63 #831F31 #833F1F

triadic

#831F31 #31831F #1F3183

tetradic

#831F31 #63831F #1F8371 #3F1F83

square

#831F31 #63831F #1F8371 #3F1F83

split-complementary

#831F31 #1F833F #1F6383

monochromatic

#20080C #52131E #831F31 #B42B44 #D44962

Accessibility & contrast

On white

9.52

#831F31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#831F31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831F31

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831F31	#FFFFFF	#000000	##FFFFFF
##831F31	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3831

Deuteranopia (green-blind)

#544D2E

Tritanopia (blue-blind)

#900027

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #831f31;
/* rgb */ color: rgb(131, 31, 49);
/* oklch */ color: oklch(40.9% 0.134 15.5);

Tailwind

colors: {
  custom: {
    50: '#ad6468',
    500: '#831f31',
    950: '#000000',
  },
}

SCSS

$custom: #831f31;
$custom-light: #ad6468;
$custom-dark: #000000;

JSON

{
  "hex": "#831f31",
  "rgb": {
    "r": 131,
    "g": 31,
    "b": 49
  },
  "hsl": {
    "h": 349.2,
    "s": 61.728,
    "l": 31.765
  },
  "oklch": {
    "l": 0.40899,
    "c": 0.13418,
    "h": 15.5
  },
  "luminance": 0.06027
}

Semantic roles & 50–950 ramp

primary

#831F31

secondary

#48B6A2

accent

#E5C843

background

#FBF6F6

surface

#F6EBEB

border

#D0C6C6

text

#110606

muted

#807A7A

Preview Lab

Preview with #831F31

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

Preview Lab → · Contrast checker → · Palette generator →