#831F1A#831F1A

#831F1A is a dark, vivid red. Relative luminance 0.059; OKLCH L 40.5% C 0.136 H 27.9°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#831F1A
RGB	rgb(131, 31, 26)
HSL	hsl(3, 67%, 31%)
HSV	hsv(3, 80%, 51%)
CMYK	cmyk(0%, 76.3%, 80.2%, 48.6%)
CIE-LAB	lab(29.11, 41.89, 28.96)
CIE-LCH	lch(29.11, 50.93, 34.65°)
OKLab	oklab(40.5% 0.1202 0.0636)
OKLCH	oklch(40.5% 0.136 27.9)
XYZ	xyz(10.0377, 5.8814, 1.5838)
Luminance	0.0588 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831F1A #1A7E83

analogous

#831A49 #831F1A #83531A

triadic

#831F1A #1A831F #1F1A83

tetradic

#831F1A #49831A #1A7E83 #531A83

square

#831F1A #49831A #1A7E83 #531A83

split-complementary

#831F1A #1A8353 #1A4983

monochromatic

#1D0706 #501310 #831F1A #B62B24 #D9463F

Accessibility & contrast

On white

9.65

#831F1A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#831F1A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831F1A

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831F1A	#FFFFFF	#000000	##FFFFFF
##831F1A	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3718

Deuteranopia (green-blind)

#564D16

Tritanopia (blue-blind)

#91001F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #831f1a;
/* rgb */ color: rgb(131, 31, 26);
/* oklch */ color: oklch(40.5% 0.136 27.9);

Tailwind

colors: {
  custom: {
    50: '#af6357',
    500: '#831f1a',
    950: '#000000',
  },
}

SCSS

$custom: #831f1a;
$custom-light: #af6357;
$custom-dark: #000000;

JSON

{
  "hex": "#831f1a",
  "rgb": {
    "r": 131,
    "g": 31,
    "b": 26
  },
  "hsl": {
    "h": 2.857,
    "s": 66.879,
    "l": 30.784
  },
  "oklch": {
    "l": 0.40501,
    "c": 0.13598,
    "h": 27.9
  },
  "luminance": 0.0588
}

Semantic roles & 50–950 ramp

primary

#831F1A

secondary

#42B1B7

accent

#E2EA3E

background

#FBF6F5

surface

#F6EBE9

border

#D0C6C5

text

#120603

muted

#817A78

Preview Lab

Preview with #831F1A

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

Preview Lab → · Contrast checker → · Palette generator →