#52181B#52181B

#52181B is a dark, moderate red. Relative luminance 0.025; OKLCH L 30.4% C 0.087 H 21.0°. Best body text is #FFFFFF at 13.95:1 contrast (WCAG AA passes).

Color values

HEX	#52181B
RGB	rgb(82, 24, 27)
HSL	hsl(357, 55%, 21%)
HSV	hsv(357, 71%, 32%)
CMYK	cmyk(0%, 70.7%, 67.1%, 67.8%)
CIE-LAB	lab(18.04, 27.26, 12.82)
CIE-LCH	lch(18.04, 30.13, 25.18°)
OKLab	oklab(30.4% 0.0808 0.031)
OKLCH	oklch(30.4% 0.087 21)
XYZ	xyz(4.0045, 2.5268, 1.3135)
Luminance	0.0253 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#52181B #18524F

analogous

#521838 #52181B #523218

triadic

#52181B #1B5218 #181B52

tetradic

#52181B #385218 #18524F #321852

square

#52181B #385218 #18524F #321852

split-complementary

#52181B #185232 #183852

monochromatic

#180708 #230A0B #52181B #81262B #B1343A

Accessibility & contrast

On white

13.95

#52181B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#52181B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #52181B

13.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##52181B	#FFFFFF	#000000	##FFFFFF
##52181B	1.00	13.95	1.51	13.95
#FFFFFF	13.95	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27241B

Deuteranopia (green-blind)

#363119

Tritanopia (blue-blind)

#5A0B1A

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #52181b;
/* rgb */ color: rgb(82, 24, 27);
/* oklch */ color: oklch(30.4% 0.087 21.0);

Tailwind

colors: {
  custom: {
    50: '#875857',
    500: '#52181b',
    950: '#000000',
  },
}

SCSS

$custom: #52181b;
$custom-light: #875857;
$custom-dark: #000000;

JSON

{
  "hex": "#52181b",
  "rgb": {
    "r": 82,
    "g": 24,
    "b": 27
  },
  "hsl": {
    "h": 356.897,
    "s": 54.717,
    "l": 20.784
  },
  "oklch": {
    "l": 0.30398,
    "c": 0.08655,
    "h": 21
  },
  "luminance": 0.02526
}

Semantic roles & 50–950 ramp

primary

#52181B

secondary

#3D8985

accent

#DED64A

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0303

muted

#7D7878

Preview Lab

Preview with #52181B

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

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