#37151A#37151A

#37151A is a very dark, muted red. Relative luminance 0.014; OKLCH L 24.9% C 0.054 H 12.7°. Best body text is #FFFFFF at 16.35:1 contrast (WCAG AA passes).

Color values

HEX	#37151A
RGB	rgb(55, 21, 26)
HSL	hsl(351, 45%, 15%)
HSV	hsv(351, 62%, 22%)
CMYK	cmyk(0%, 61.8%, 52.7%, 78.4%)
CIE-LAB	lab(12.11, 17.56, 4.65)
CIE-LCH	lch(12.11, 18.16, 14.85°)
OKLab	oklab(24.92% 0.0531 0.012)
OKLCH	oklch(24.92% 0.054 12.7)
XYZ	xyz(2.0303, 1.4234, 1.1449)
Luminance	0.0142 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37151A #153732

analogous

#37152B #37151A #372115

triadic

#37151A #1A3715 #151A37

tetradic

#37151A #2B3715 #153732 #211537

square

#37151A #2B3715 #153732 #211537

split-complementary

#37151A #153721 #152B37

monochromatic

#16080A #16080A #37151A #63262F #903744

Accessibility & contrast

On white

16.35

#37151A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#37151A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37151A

16.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37151A	#FFFFFF	#000000	##FFFFFF
##37151A	1.00	16.35	1.28	16.35
#FFFFFF	16.35	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C1C1A

Deuteranopia (green-blind)

#252219

Tritanopia (blue-blind)

#3C1117

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #37151a;
/* rgb */ color: rgb(55, 21, 26);
/* oklch */ color: oklch(24.9% 0.054 12.7);

Tailwind

colors: {
  custom: {
    50: '#705356',
    500: '#37151a',
    950: '#000000',
  },
}

SCSS

$custom: #37151a;
$custom-light: #705356;
$custom-dark: #000000;

JSON

{
  "hex": "#37151a",
  "rgb": {
    "r": 55,
    "g": 21,
    "b": 26
  },
  "hsl": {
    "h": 351.176,
    "s": 44.737,
    "l": 14.902
  },
  "oklch": {
    "l": 0.24915,
    "c": 0.05447,
    "h": 12.7
  },
  "luminance": 0.01423
}

Semantic roles & 50–950 ramp

primary

#37151A

secondary

#3A6E66

accent

#D4C153

background

#F6F4F5

surface

#ECE7E9

border

#C7C3C5

text

#080203

muted

#7B7878

Preview Lab

Preview with #37151A

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

Preview Lab → · Contrast checker → · Palette generator →