#370B10#370B10

#370B10 is a very dark, moderate red. Relative luminance 0.011; OKLCH L 23.0% C 0.070 H 18.1°. Best body text is #FFFFFF at 17.24:1 contrast (WCAG AA passes).

Color values

HEX	#370B10
RGB	rgb(55, 11, 16)
HSL	hsl(353, 67%, 13%)
HSV	hsv(353, 80%, 22%)
CMYK	cmyk(0%, 80%, 70.9%, 78.4%)
CIE-LAB	lab(9.71, 22.17, 8.08)
CIE-LCH	lch(9.71, 23.59, 20.02°)
OKLab	oklab(23.03% 0.0661 0.0216)
OKLCH	oklch(23.03% 0.07 18.1)
XYZ	xyz(1.7889, 1.0892, 0.6062)
Luminance	0.0109 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370B10 #0B3732

analogous

#370B26 #370B10 #371C0B

triadic

#370B10 #10370B #0B1037

tetradic

#370B10 #26370B #0B3732 #1C0B37

square

#370B10 #26370B #0B3732 #1C0B37

split-complementary

#370B10 #0B371C #0B2637

monochromatic

#1A0507 #1A0507 #370B10 #6A151F #9D1F2E

Accessibility & contrast

On white

17.24

#370B10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#370B10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370B10

17.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370B10	#FFFFFF	#000000	##FFFFFF
##370B10	1.00	17.24	1.22	17.24
#FFFFFF	17.24	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161510

Deuteranopia (green-blind)

#221E0F

Tritanopia (blue-blind)

#3D030D

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #370b10;
/* rgb */ color: rgb(55, 11, 16);
/* oklch */ color: oklch(23.0% 0.070 18.1);

Tailwind

colors: {
  custom: {
    50: '#724d4e',
    500: '#370b10',
    950: '#000000',
  },
}

SCSS

$custom: #370b10;
$custom-light: #724d4e;
$custom-dark: #000000;

JSON

{
  "hex": "#370b10",
  "rgb": {
    "r": 55,
    "g": 11,
    "b": 16
  },
  "hsl": {
    "h": 353.182,
    "s": 66.667,
    "l": 12.941
  },
  "oklch": {
    "l": 0.23028,
    "c": 0.06955,
    "h": 18.1
  },
  "luminance": 0.01089
}

Semantic roles & 50–950 ramp

primary

#370B10

secondary

#2A746B

accent

#EAD63E

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #370B10

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

Preview Lab → · Contrast checker → · Palette generator →