#53181B#53181B

#53181B is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.6% C 0.088 H 21.1°. Best body text is #FFFFFF at 13.87:1 contrast (WCAG AA passes).

Color values

HEX	#53181B
RGB	rgb(83, 24, 27)
HSL	hsl(357, 55%, 21%)
HSV	hsv(357, 71%, 33%)
CMYK	cmyk(0%, 71.1%, 67.5%, 67.5%)
CIE-LAB	lab(18.24, 27.65, 13.12)
CIE-LCH	lch(18.24, 30.61, 25.38°)
OKLab	oklab(30.59% 0.0819 0.0316)
OKLCH	oklch(30.59% 0.088 21.1)
XYZ	xyz(4.0921, 2.5720, 1.3177)
Luminance	0.0257 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#53181B #185350

analogous

#531838 #53181B #533218

triadic

#53181B #1B5318 #181B53

tetradic

#53181B #385318 #185350 #321853

square

#53181B #385318 #185350 #321853

split-complementary

#53181B #185332 #183853

monochromatic

#180708 #240A0C #53181B #82262A #B2333A

Accessibility & contrast

On white

13.87

#53181B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#53181B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #53181B

13.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##53181B	#FFFFFF	#000000	##FFFFFF
##53181B	1.00	13.87	1.51	13.87
#FFFFFF	13.87	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27251B

Deuteranopia (green-blind)

#363119

Tritanopia (blue-blind)

#5C0B1A

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #53181b;
/* rgb */ color: rgb(83, 24, 27);
/* oklch */ color: oklch(30.6% 0.088 21.1);

Tailwind

colors: {
  custom: {
    50: '#885957',
    500: '#53181b',
    950: '#000000',
  },
}

SCSS

$custom: #53181b;
$custom-light: #885957;
$custom-dark: #000000;

JSON

{
  "hex": "#53181b",
  "rgb": {
    "r": 83,
    "g": 24,
    "b": 27
  },
  "hsl": {
    "h": 356.949,
    "s": 55.14,
    "l": 20.98
  },
  "oklch": {
    "l": 0.30587,
    "c": 0.08782,
    "h": 21.1
  },
  "luminance": 0.02571
}

Semantic roles & 50–950 ramp

primary

#53181B

secondary

#3D8A86

accent

#DED749

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0303

muted

#7D7878

Preview Lab

Preview with #53181B

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

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