#831D1A#831D1A

#831D1A is a dark, vivid red. Relative luminance 0.058; OKLCH L 40.3% C 0.138 H 27.2°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#831D1A
RGB	rgb(131, 29, 26)
HSL	hsl(2, 67%, 31%)
HSV	hsv(2, 80%, 51%)
CMYK	cmyk(0%, 77.9%, 80.2%, 48.6%)
CIE-LAB	lab(28.85, 42.62, 28.68)
CIE-LCH	lch(28.85, 51.37, 33.94°)
OKLab	oklab(40.31% 0.1225 0.063)
OKLCH	oklch(40.31% 0.138 27.2)
XYZ	xyz(9.9871, 5.7802, 1.5669)
Luminance	0.0578 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831D1A #1A8083

analogous

#831A4B #831D1A #83511A

triadic

#831D1A #1A831D #1D1A83

tetradic

#831D1A #4B831A #1A8083 #511A83

square

#831D1A #4B831A #1A8083 #511A83

split-complementary

#831D1A #1A8351 #1A4B83

monochromatic

#1D0606 #501210 #831D1A #B62824 #D9433F

Accessibility & contrast

On white

9.74

#831D1A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#831D1A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831D1A

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831D1A	#FFFFFF	#000000	##FFFFFF
##831D1A	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C3618

Deuteranopia (green-blind)

#554C16

Tritanopia (blue-blind)

#91001E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #831d1a;
/* rgb */ color: rgb(131, 29, 26);
/* oklch */ color: oklch(40.3% 0.138 27.2);

Tailwind

colors: {
  custom: {
    50: '#af6257',
    500: '#831d1a',
    950: '#000000',
  },
}

SCSS

$custom: #831d1a;
$custom-light: #af6257;
$custom-dark: #000000;

JSON

{
  "hex": "#831d1a",
  "rgb": {
    "r": 131,
    "g": 29,
    "b": 26
  },
  "hsl": {
    "h": 1.714,
    "s": 66.879,
    "l": 30.784
  },
  "oklch": {
    "l": 0.40307,
    "c": 0.13773,
    "h": 27.2
  },
  "luminance": 0.05779
}

Semantic roles & 50–950 ramp

primary

#831D1A

secondary

#42B3B7

accent

#E5EA3E

background

#FBF6F5

surface

#F6EBE9

border

#D0C6C5

text

#120603

muted

#817A78

Preview Lab

Preview with #831D1A

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

Preview Lab → · Contrast checker → · Palette generator →