#811B2A#811B2A

#811B2A is a dark, vivid red. Relative luminance 0.056; OKLCH L 40.0% C 0.136 H 18.3°. Best body text is #FFFFFF at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#811B2A
RGB	rgb(129, 27, 42)
HSL	hsl(351, 65%, 31%)
HSV	hsv(351, 79%, 51%)
CMYK	cmyk(0%, 79.1%, 67.4%, 49.4%)
CIE-LAB	lab(28.43, 43.45, 17.89)
CIE-LCH	lch(28.43, 46.99, 22.38°)
OKLab	oklab(40% 0.1291 0.0426)
OKLCH	oklch(40% 0.136 18.3)
XYZ	xyz(9.8642, 5.6197, 2.7553)
Luminance	0.0562 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#811B2A #1B8172

analogous

#811B5D #811B2A #813F1B

triadic

#811B2A #2A811B #1B2A81

tetradic

#811B2A #5D811B #1B8172 #3F1B81

square

#811B2A #5D811B #1B8172 #3F1B81

split-complementary

#811B2A #1B813F #1B5D81

monochromatic

#1C0609 #4E101A #811B2A #B4263A #D73F56

Accessibility & contrast

On white

9.89

#811B2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#811B2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #811B2A

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##811B2A	#FFFFFF	#000000	##FFFFFF
##811B2A	1.00	9.89	2.12	9.89
#FFFFFF	9.89	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#38352A

Deuteranopia (green-blind)

#524B27

Tritanopia (blue-blind)

#8E0022

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #811b2a;
/* rgb */ color: rgb(129, 27, 42);
/* oklch */ color: oklch(40.0% 0.136 18.3);

Tailwind

colors: {
  custom: {
    50: '#ac6163',
    500: '#811b2a',
    950: '#000000',
  },
}

SCSS

$custom: #811b2a;
$custom-light: #ac6163;
$custom-dark: #000000;

JSON

{
  "hex": "#811b2a",
  "rgb": {
    "r": 129,
    "g": 27,
    "b": 42
  },
  "hsl": {
    "h": 351.176,
    "s": 65.385,
    "l": 30.588
  },
  "oklch": {
    "l": 0.39999,
    "c": 0.13595,
    "h": 18.3
  },
  "luminance": 0.05618
}

Semantic roles & 50–950 ramp

primary

#811B2A

secondary

#43B5A4

accent

#E8D03F

background

#FBF6F5

surface

#F6EBEA

border

#D0C6C6

text

#110505

muted

#807A79

Preview Lab

Preview with #811B2A

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

Preview Lab → · Contrast checker → · Palette generator →