#851B2A#851B2A

#851B2A is a dark, vivid red. Relative luminance 0.059; OKLCH L 40.8% C 0.140 H 18.8°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#851B2A
RGB	rgb(133, 27, 42)
HSL	hsl(352, 66%, 31%)
HSV	hsv(352, 80%, 52%)
CMYK	cmyk(0%, 79.7%, 68.4%, 47.8%)
CIE-LAB	lab(29.26, 44.71, 19.11)
CIE-LCH	lch(29.26, 48.62, 23.14°)
OKLab	oklab(40.76% 0.1326 0.0452)
OKLCH	oklch(40.76% 0.14 18.8)
XYZ	xyz(10.4839, 5.9392, 2.7844)
Luminance	0.0594 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#851B2A #1B8576

analogous

#851B5F #851B2A #85411B

triadic

#851B2A #2A851B #1B2A85

tetradic

#851B2A #5F851B #1B8576 #411B85

square

#851B2A #5F851B #1B8576 #411B85

split-complementary

#851B2A #1B8541 #1B5F85

monochromatic

#1F060A #52111A #851B2A #B8253A #D94257

Accessibility & contrast

On white

9.60

#851B2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#851B2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #851B2A

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##851B2A	#FFFFFF	#000000	##FFFFFF
##851B2A	1.00	9.60	2.19	9.60
#FFFFFF	9.60	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A372A

Deuteranopia (green-blind)

#554D27

Tritanopia (blue-blind)

#920022

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #851b2a;
/* rgb */ color: rgb(133, 27, 42);
/* oklch */ color: oklch(40.8% 0.140 18.8);

Tailwind

colors: {
  custom: {
    50: '#b06263',
    500: '#851b2a',
    950: '#000000',
  },
}

SCSS

$custom: #851b2a;
$custom-light: #b06263;
$custom-dark: #000000;

JSON

{
  "hex": "#851b2a",
  "rgb": {
    "r": 133,
    "g": 27,
    "b": 42
  },
  "hsl": {
    "h": 351.509,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.4076,
    "c": 0.14005,
    "h": 18.8
  },
  "luminance": 0.05938
}

Semantic roles & 50–950 ramp

primary

#851B2A

secondary

#44B8A8

accent

#E9D13F

background

#FBF6F5

surface

#F6EBEA

border

#D0C6C6

text

#120605

muted

#817A79

Preview Lab

Preview with #851B2A

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

Preview Lab → · Contrast checker → · Palette generator →