#37151C#37151C

#37151C is a very dark, muted red. Relative luminance 0.014; OKLCH L 25.0% C 0.055 H 9.0°. Best body text is #FFFFFF at 16.32:1 contrast (WCAG AA passes).

Color values

HEX	#37151C
RGB	rgb(55, 21, 28)
HSL	hsl(348, 45%, 15%)
HSV	hsv(348, 62%, 22%)
CMYK	cmyk(0%, 61.8%, 49.1%, 78.4%)
CIE-LAB	lab(12.17, 17.82, 3.26)
CIE-LCH	lch(12.17, 18.12, 10.35°)
OKLab	oklab(24.98% 0.0541 0.0086)
OKLCH	oklch(24.98% 0.055 9)
XYZ	xyz(2.0534, 1.4326, 1.2668)
Luminance	0.0143 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37151C #153730

analogous

#37152D #37151C #371F15

triadic

#37151C #1C3715 #151C37

tetradic

#37151C #2D3715 #153730 #1F1537

square

#37151C #2D3715 #153730 #1F1537

split-complementary

#37151C #15371F #152D37

monochromatic

#16080B #16080B #37151C #632633 #903749

Accessibility & contrast

On white

16.32

#37151C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#37151C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37151C

16.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37151C	#FFFFFF	#000000	##FFFFFF
##37151C	1.00	16.32	1.29	16.32
#FFFFFF	16.32	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C1C1C

Deuteranopia (green-blind)

#24221B

Tritanopia (blue-blind)

#3C1118

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #37151c;
/* rgb */ color: rgb(55, 21, 28);
/* oklch */ color: oklch(25.0% 0.055 9.0);

Tailwind

colors: {
  custom: {
    50: '#705357',
    500: '#37151c',
    950: '#000000',
  },
}

SCSS

$custom: #37151c;
$custom-light: #705357;
$custom-dark: #000000;

JSON

{
  "hex": "#37151c",
  "rgb": {
    "r": 55,
    "g": 21,
    "b": 28
  },
  "hsl": {
    "h": 347.647,
    "s": 44.737,
    "l": 14.902
  },
  "oklch": {
    "l": 0.24981,
    "c": 0.05477,
    "h": 9
  },
  "luminance": 0.01432
}

Semantic roles & 50–950 ramp

primary

#37151C

secondary

#3A6E63

accent

#D4BA53

background

#F6F4F5

surface

#ECE7E9

border

#C7C3C5

text

#080203

muted

#7B7878

Preview Lab

Preview with #37151C

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

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