#831C1A#831C1A

#831C1A is a dark, vivid red. Relative luminance 0.057; OKLCH L 40.2% C 0.139 H 26.9°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#831C1A
RGB	rgb(131, 28, 26)
HSL	hsl(1, 67%, 31%)
HSV	hsv(1, 80%, 51%)
CMYK	cmyk(0%, 78.6%, 80.2%, 48.6%)
CIE-LAB	lab(28.73, 42.97, 28.55)
CIE-LCH	lch(28.73, 51.59, 33.60°)
OKLab	oklab(40.21% 0.1236 0.0627)
OKLCH	oklch(40.21% 0.139 26.9)
XYZ	xyz(9.9630, 5.7320, 1.5589)
Luminance	0.0573 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#831C1A #1A8183

analogous

#831A4C #831C1A #83501A

triadic

#831C1A #1A831C #1C1A83

tetradic

#831C1A #4C831A #1A8183 #501A83

square

#831C1A #4C831A #1A8183 #501A83

split-complementary

#831C1A #1A8350 #1A4C83

monochromatic

#1D0606 #501110 #831C1A #B62724 #D9423F

Accessibility & contrast

On white

9.79

#831C1A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#831C1A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #831C1A

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##831C1A	#FFFFFF	#000000	##FFFFFF
##831C1A	1.00	9.79	2.15	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C3519

Deuteranopia (green-blind)

#554C16

Tritanopia (blue-blind)

#91001D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #831c1a;
/* rgb */ color: rgb(131, 28, 26);
/* oklch */ color: oklch(40.2% 0.139 26.9);

Tailwind

colors: {
  custom: {
    50: '#af6257',
    500: '#831c1a',
    950: '#000000',
  },
}

SCSS

$custom: #831c1a;
$custom-light: #af6257;
$custom-dark: #000000;

JSON

{
  "hex": "#831c1a",
  "rgb": {
    "r": 131,
    "g": 28,
    "b": 26
  },
  "hsl": {
    "h": 1.143,
    "s": 66.879,
    "l": 30.784
  },
  "oklch": {
    "l": 0.40214,
    "c": 0.13858,
    "h": 26.9
  },
  "luminance": 0.0573
}

Semantic roles & 50–950 ramp

primary

#831C1A

secondary

#42B4B7

accent

#E7EA3E

background

#FBF6F5

surface

#F6EBE9

border

#D0C6C5

text

#120503

muted

#817A78

Preview Lab

Preview with #831C1A

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

Preview Lab → · Contrast checker → · Palette generator →