#370B0E#370B0E

#370B0E is a very dark, moderate red. Relative luminance 0.011; OKLCH L 23.0% C 0.070 H 20.8°. Best body text is #FFFFFF at 17.26:1 contrast (WCAG AA passes).

Color values

HEX	#370B0E
RGB	rgb(55, 11, 14)
HSL	hsl(356, 67%, 13%)
HSV	hsv(356, 80%, 22%)
CMYK	cmyk(0%, 80%, 74.5%, 78.4%)
CIE-LAB	lab(9.67, 22.01, 9.07)
CIE-LCH	lch(9.67, 23.80, 22.41°)
OKLab	oklab(22.98% 0.0651 0.0247)
OKLCH	oklch(22.98% 0.07 20.8)
XYZ	xyz(1.7747, 1.0835, 0.5311)
Luminance	0.0108 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370B0E #0B3734

analogous

#370B24 #370B0E #371E0B

triadic

#370B0E #0E370B #0B0E37

tetradic

#370B0E #24370B #0B3734 #1E0B37

square

#370B0E #24370B #0B3734 #1E0B37

split-complementary

#370B0E #0B371E #0B2437

monochromatic

#1A0506 #1A0506 #370B0E #6A151B #9D1F28

Accessibility & contrast

On white

17.26

#370B0E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#370B0E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370B0E

17.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370B0E	#FFFFFF	#000000	##FFFFFF
##370B0E	1.00	17.26	1.22	17.26
#FFFFFF	17.26	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17150E

Deuteranopia (green-blind)

#221E0D

Tritanopia (blue-blind)

#3D030C

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #370b0e;
/* rgb */ color: rgb(55, 11, 14);
/* oklch */ color: oklch(23.0% 0.070 20.8);

Tailwind

colors: {
  custom: {
    50: '#724d4d',
    500: '#370b0e',
    950: '#000000',
  },
}

SCSS

$custom: #370b0e;
$custom-light: #724d4d;
$custom-dark: #000000;

JSON

{
  "hex": "#370b0e",
  "rgb": {
    "r": 55,
    "g": 11,
    "b": 14
  },
  "hsl": {
    "h": 355.909,
    "s": 66.667,
    "l": 12.941
  },
  "oklch": {
    "l": 0.2298,
    "c": 0.06965,
    "h": 20.8
  },
  "luminance": 0.01083
}

Semantic roles & 50–950 ramp

primary

#370B0E

secondary

#2A746F

accent

#EADE3E

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #370B0E

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

Preview Lab → · Contrast checker → · Palette generator →