#370C0D#370C0D

#370C0D is a very dark, moderate red. Relative luminance 0.011; OKLCH L 23.1% C 0.068 H 23.0°. Best body text is #FFFFFF at 17.20:1 contrast (WCAG AA passes).

Color values

HEX	#370C0D
RGB	rgb(55, 12, 13)
HSL	hsl(359, 64%, 13%)
HSV	hsv(359, 78%, 22%)
CMYK	cmyk(0%, 78.2%, 76.4%, 78.4%)
CIE-LAB	lab(9.83, 21.42, 9.80)
CIE-LCH	lch(9.83, 23.56, 24.58°)
OKLab	oklab(23.1% 0.063 0.0267)
OKLCH	oklch(23.1% 0.068 23)
XYZ	xyz(1.7798, 1.1045, 0.5002)
Luminance	0.0110 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370C0D #0C3736

analogous

#370C22 #370C0D #37200C

triadic

#370C0D #0D370C #0C0D37

tetradic

#370C0D #22370C #0C3736 #200C37

square

#370C0D #22370C #0C3736 #200C37

split-complementary

#370C0D #0C3720 #0C2237

monochromatic

#190506 #190506 #370C0D #691719 #9B2225

Accessibility & contrast

On white

17.20

#370C0D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#370C0D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370C0D

17.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370C0D	#FFFFFF	#000000	##FFFFFF
##370C0D	1.00	17.20	1.22	17.20
#FFFFFF	17.20	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#18150D

Deuteranopia (green-blind)

#221F0C

Tritanopia (blue-blind)

#3D030D

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #370c0d;
/* rgb */ color: rgb(55, 12, 13);
/* oklch */ color: oklch(23.1% 0.068 23.0);

Tailwind

colors: {
  custom: {
    50: '#724e4c',
    500: '#370c0d',
    950: '#000000',
  },
}

SCSS

$custom: #370c0d;
$custom-light: #724e4c;
$custom-dark: #000000;

JSON

{
  "hex": "#370c0d",
  "rgb": {
    "r": 55,
    "g": 12,
    "b": 13
  },
  "hsl": {
    "h": 358.605,
    "s": 64.179,
    "l": 13.137
  },
  "oklch": {
    "l": 0.23097,
    "c": 0.06848,
    "h": 23
  },
  "luminance": 0.01104
}

Semantic roles & 50–950 ramp

primary

#370C0D

secondary

#2C7371

accent

#E7E341

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #370C0D

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

Preview Lab → · Contrast checker → · Palette generator →