#831D15#831D15

#831D15 is a dark, vivid red. Relative luminance 0.058; OKLCH L 40.3% C 0.138 H 29.2°. Best body text is #FFFFFF at 9.76:1 contrast (WCAG AA passes).

Color values

HEX	#831D15
RGB	rgb(131, 29, 21)
HSL	hsl(4, 72%, 30%)
HSV	hsv(4, 84%, 51%)
CMYK	cmyk(0%, 77.9%, 84%, 48.6%)
CIE-LAB	lab(28.80, 42.44, 31.55)
CIE-LCH	lch(28.80, 52.89, 36.63°)
OKLab	oklab(40.25% 0.1209 0.0675)
OKLCH	oklch(40.25% 0.138 29.2)
XYZ	xyz(9.9360, 5.7597, 1.2979)
Luminance	0.0576 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831D15 #157B83

analogous

#831544 #831D15 #835415

triadic

#831D15 #15831D #1D1583

tetradic

#831D15 #448315 #157B83 #541583

square

#831D15 #448315 #157B83 #541583

split-complementary

#831D15 #158354 #154483

monochromatic

#1A0604 #4E110D #831D15 #B8291D #DE4034

Accessibility & contrast

On white

9.76

#831D15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#831D15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831D15

9.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831D15	#FFFFFF	#000000	##FFFFFF
##831D15	1.00	9.76	2.15	9.76
#FFFFFF	9.76	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3613

Deuteranopia (green-blind)

#564C10

Tritanopia (blue-blind)

#91001C

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #831d15;
/* rgb */ color: rgb(131, 29, 21);
/* oklch */ color: oklch(40.3% 0.138 29.2);

Tailwind

colors: {
  custom: {
    50: '#af6253',
    500: '#831d15',
    950: '#000000',
  },
}

SCSS

$custom: #831d15;
$custom-light: #af6253;
$custom-dark: #000000;

JSON

{
  "hex": "#831d15",
  "rgb": {
    "r": 131,
    "g": 29,
    "b": 21
  },
  "hsl": {
    "h": 4.364,
    "s": 72.368,
    "l": 29.804
  },
  "oklch": {
    "l": 0.40251,
    "c": 0.13845,
    "h": 29.2
  },
  "luminance": 0.05758
}

Semantic roles & 50–950 ramp

primary

#831D15

secondary

#3CAFB8

accent

#E2EF39

background

#FBF6F4

surface

#F7EBE7

border

#D0C6C3

text

#120602

muted

#817A78

Preview Lab

Preview with #831D15

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

Preview Lab → · Contrast checker → · Palette generator →