#811C2B#811C2B

#811C2B is a dark, vivid red. Relative luminance 0.057; OKLCH L 40.1% C 0.135 H 18.0°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#811C2B
RGB	rgb(129, 28, 43)
HSL	hsl(351, 64%, 31%)
HSV	hsv(351, 78%, 51%)
CMYK	cmyk(0%, 78.3%, 66.7%, 49.4%)
CIE-LAB	lab(28.57, 43.17, 17.41)
CIE-LCH	lch(28.57, 46.55, 21.96°)
OKLab	oklab(40.11% 0.1284 0.0417)
OKLCH	oklch(40.11% 0.135 18)
XYZ	xyz(9.9056, 5.6735, 2.8585)
Luminance	0.0567 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#811C2B #1C8172

analogous

#811C5D #811C2B #813F1C

triadic

#811C2B #2B811C #1C2B81

tetradic

#811C2B #5D811C #1C8172 #3F1C81

square

#811C2B #5D811C #1C8172 #3F1C81

split-complementary

#811C2B #1C813F #1C5D81

monochromatic

#1C0609 #4F111A #811C2B #B3273C #D64258

Accessibility & contrast

On white

9.84

#811C2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#811C2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #811C2B

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##811C2B	#FFFFFF	#000000	##FFFFFF
##811C2B	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#39362B

Deuteranopia (green-blind)

#524B28

Tritanopia (blue-blind)

#8E0023

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #811c2b;
/* rgb */ color: rgb(129, 28, 43);
/* oklch */ color: oklch(40.1% 0.135 18.0);

Tailwind

colors: {
  custom: {
    50: '#ac6264',
    500: '#811c2b',
    950: '#000000',
  },
}

SCSS

$custom: #811c2b;
$custom-light: #ac6264;
$custom-dark: #000000;

JSON

{
  "hex": "#811c2b",
  "rgb": {
    "r": 129,
    "g": 28,
    "b": 43
  },
  "hsl": {
    "h": 351.089,
    "s": 64.331,
    "l": 30.784
  },
  "oklch": {
    "l": 0.4011,
    "c": 0.13501,
    "h": 18
  },
  "luminance": 0.05672
}

Semantic roles & 50–950 ramp

primary

#811C2B

secondary

#44B4A4

accent

#E7CF40

background

#FBF6F5

surface

#F6EBEA

border

#D0C6C6

text

#110605

muted

#807A79

Preview Lab

Preview with #811C2B

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

Preview Lab → · Contrast checker → · Palette generator →