#851828#851828

#851828 is a dark, vivid red. Relative luminance 0.058; OKLCH L 40.5% C 0.143 H 19.2°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#851828
RGB	rgb(133, 24, 40)
HSL	hsl(351, 69%, 31%)
HSV	hsv(351, 82%, 52%)
CMYK	cmyk(0%, 82%, 69.9%, 47.8%)
CIE-LAB	lab(28.89, 45.54, 19.96)
CIE-LCH	lch(28.89, 49.72, 23.67°)
OKLab	oklab(40.48% 0.1348 0.0469)
OKLCH	oklch(40.48% 0.143 19.2)
XYZ	xyz(10.3837, 5.7946, 2.5788)
Luminance	0.0579 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#851828 #188575

analogous

#85185E #851828 #853E18

triadic

#851828 #288518 #182885

tetradic

#851828 #5E8518 #188575 #3E1885

square

#851828 #5E8518 #188575 #3E1885

split-complementary

#851828 #18853E #185E85

monochromatic

#1D0509 #510F18 #851828 #B92138 #DC3C53

Accessibility & contrast

On white

9.73

#851828 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#851828 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #851828

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##851828	#FFFFFF	#000000	##FFFFFF
##851828	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393528

Deuteranopia (green-blind)

#544C25

Tritanopia (blue-blind)

#93001F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #851828;
/* rgb */ color: rgb(133, 24, 40);
/* oklch */ color: oklch(40.5% 0.143 19.2);

Tailwind

colors: {
  custom: {
    50: '#b06161',
    500: '#851828',
    950: '#000000',
  },
}

SCSS

$custom: #851828;
$custom-light: #b06161;
$custom-dark: #000000;

JSON

{
  "hex": "#851828",
  "rgb": {
    "r": 133,
    "g": 24,
    "b": 40
  },
  "hsl": {
    "h": 351.193,
    "s": 69.427,
    "l": 30.784
  },
  "oklch": {
    "l": 0.40475,
    "c": 0.14266,
    "h": 19.2
  },
  "luminance": 0.05793
}

Semantic roles & 50–950 ramp

primary

#851828

secondary

#40B9A7

accent

#ECD23C

background

#FBF6F5

surface

#F6EBE9

border

#D0C6C5

text

#120505

muted

#817A79

Preview Lab

Preview with #851828

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

Preview Lab → · Contrast checker → · Palette generator →