#851B1F#851B1F

#851B1F is a dark, vivid red. Relative luminance 0.059; OKLCH L 40.6% C 0.141 H 24.5°. Best body text is #FFFFFF at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#851B1F
RGB	rgb(133, 27, 31)
HSL	hsl(358, 66%, 31%)
HSV	hsv(358, 80%, 52%)
CMYK	cmyk(0%, 79.7%, 76.7%, 47.8%)
CIE-LAB	lab(29.08, 44.15, 25.98)
CIE-LCH	lch(29.08, 51.23, 30.48°)
OKLab	oklab(40.58% 0.1282 0.0584)
OKLCH	oklch(40.58% 0.141 24.5)
XYZ	xyz(10.3133, 5.8710, 1.8862)
Luminance	0.0587 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#851B1F #1B8581

analogous

#851B54 #851B1F #854C1B

triadic

#851B1F #1F851B #1B1F85

tetradic

#851B1F #54851B #1B8581 #4C1B85

square

#851B1F #54851B #1B8581 #4C1B85

split-complementary

#851B1F #1B854C #1B5485

monochromatic

#1F0607 #521113 #851B1F #B8252B #D94247

Accessibility & contrast

On white

9.66

#851B1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#851B1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #851B1F

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##851B1F	#FFFFFF	#000000	##FFFFFF
##851B1F	1.00	9.66	2.17	9.66
#FFFFFF	9.66	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B361E

Deuteranopia (green-blind)

#564D1B

Tritanopia (blue-blind)

#93001E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #851b1f;
/* rgb */ color: rgb(133, 27, 31);
/* oklch */ color: oklch(40.6% 0.141 24.5);

Tailwind

colors: {
  custom: {
    50: '#b0625b',
    500: '#851b1f',
    950: '#000000',
  },
}

SCSS

$custom: #851b1f;
$custom-light: #b0625b;
$custom-dark: #000000;

JSON

{
  "hex": "#851b1f",
  "rgb": {
    "r": 133,
    "g": 27,
    "b": 31
  },
  "hsl": {
    "h": 357.736,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.40575,
    "c": 0.14087,
    "h": 24.5
  },
  "luminance": 0.05869
}

Semantic roles & 50–950 ramp

primary

#851B1F

secondary

#44B8B4

accent

#E9E33F

background

#FBF6F5

surface

#F6EBE9

border

#D0C6C5

text

#120604

muted

#817A79

Preview Lab

Preview with #851B1F

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

Preview Lab → · Contrast checker → · Palette generator →