#37130B#37130B

#37130B is a very dark, muted red. Relative luminance 0.013; OKLCH L 24.2% C 0.060 H 34.0°. Best body text is #FFFFFF at 16.66:1 contrast (WCAG AA passes).

Color values

HEX	#37130B
RGB	rgb(55, 19, 11)
HSL	hsl(11, 67%, 13%)
HSV	hsv(11, 80%, 22%)
CMYK	cmyk(0%, 65.5%, 80%, 78.4%)
CIE-LAB	lab(11.29, 17.32, 12.75)
CIE-LCH	lch(11.29, 21.51, 36.37°)
OKLab	oklab(24.18% 0.0497 0.0335)
OKLCH	oklch(24.18% 0.06 34)
XYZ	xyz(1.8690, 1.3024, 0.4695)
Luminance	0.0130 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37130B #0B2F37

analogous

#370B19 #37130B #37290B

triadic

#37130B #0B3713 #130B37

tetradic

#37130B #19370B #0B2F37 #290B37

square

#37130B #19370B #0B2F37 #290B37

split-complementary

#37130B #0B3729 #0B1937

monochromatic

#1A0905 #1A0905 #37130B #6A2515 #9D361F

Accessibility & contrast

On white

16.66

#37130B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#37130B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37130B

16.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37130B	#FFFFFF	#000000	##FFFFFF
##37130B	1.00	16.66	1.26	16.66
#FFFFFF	16.66	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D190A

Deuteranopia (green-blind)

#25210A

Tritanopia (blue-blind)

#3D0C11

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #37130b;
/* rgb */ color: rgb(55, 19, 11);
/* oklch */ color: oklch(24.2% 0.060 34.0);

Tailwind

colors: {
  custom: {
    50: '#71524b',
    500: '#37130b',
    950: '#000000',
  },
}

SCSS

$custom: #37130b;
$custom-light: #71524b;
$custom-dark: #000000;

JSON

{
  "hex": "#37130b",
  "rgb": {
    "r": 55,
    "g": 19,
    "b": 11
  },
  "hsl": {
    "h": 10.909,
    "s": 66.667,
    "l": 12.941
  },
  "oklch": {
    "l": 0.24184,
    "c": 0.05993,
    "h": 34
  },
  "luminance": 0.01302
}

Semantic roles & 50–950 ramp

primary

#37130B

secondary

#2A6674

accent

#CAEA3E

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080201

muted

#7B7877

Preview Lab

Preview with #37130B

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

Preview Lab → · Contrast checker → · Palette generator →