#37181E#37181E

#37181E is a dark, muted red. Relative luminance 0.016; OKLCH L 25.6% C 0.050 H 8.9°. Best body text is #FFFFFF at 16.01:1 contrast (WCAG AA passes).

Color values

HEX	#37181E
RGB	rgb(55, 24, 30)
HSL	hsl(348, 39%, 15%)
HSV	hsv(348, 56%, 22%)
CMYK	cmyk(0%, 56.4%, 45.5%, 78.4%)
CIE-LAB	lab(12.98, 16.20, 2.93)
CIE-LCH	lch(12.98, 16.46, 10.25°)
OKLab	oklab(25.61% 0.0491 0.0077)
OKLCH	oklch(25.61% 0.05 8.9)
XYZ	xyz(2.1366, 1.5594, 1.4165)
Luminance	0.0156 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37181E #183731

analogous

#37182D #37181E #372118

triadic

#37181E #1E3718 #181E37

tetradic

#37181E #2D3718 #183731 #211837

square

#37181E #2D3718 #183731 #211837

split-complementary

#37181E #183721 #182D37

monochromatic

#15090C #15090C #37181E #622B35 #8C3D4C

Accessibility & contrast

On white

16.01

#37181E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#37181E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37181E

16.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37181E	#FFFFFF	#000000	##FFFFFF
##37181E	1.00	16.01	1.31	16.01
#FFFFFF	16.01	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E1E1E

Deuteranopia (green-blind)

#25241D

Tritanopia (blue-blind)

#3C151A

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #37181e;
/* rgb */ color: rgb(55, 24, 30);
/* oklch */ color: oklch(25.6% 0.050 8.9);

Tailwind

colors: {
  custom: {
    50: '#6f5659',
    500: '#37181e',
    950: '#000000',
  },
}

SCSS

$custom: #37181e;
$custom-light: #6f5659;
$custom-dark: #000000;

JSON

{
  "hex": "#37181e",
  "rgb": {
    "r": 55,
    "g": 24,
    "b": 30
  },
  "hsl": {
    "h": 348.387,
    "s": 39.241,
    "l": 15.49
  },
  "oklch": {
    "l": 0.25612,
    "c": 0.04974,
    "h": 8.9
  },
  "luminance": 0.01559
}

Semantic roles & 50–950 ramp

primary

#37181E

secondary

#3E6D64

accent

#CFB859

background

#F6F5F5

surface

#ECE9E9

border

#C7C5C5

text

#070303

muted

#7A7878

Preview Lab

Preview with #37181E

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

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