#370406#370406

#370406 is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.9% C 0.080 H 24.6°. Best body text is #FFFFFF at 17.76:1 contrast (WCAG AA passes).

Color values

HEX	#370406
RGB	rgb(55, 4, 6)
HSL	hsl(358, 86%, 12%)
HSV	hsv(358, 93%, 22%)
CMYK	cmyk(0%, 92.7%, 89.1%, 78.4%)
CIE-LAB	lab(8.24, 25.03, 10.47)
CIE-LCH	lch(8.24, 27.13, 22.69°)
OKLab	oklab(21.87% 0.0725 0.0331)
OKLCH	oklch(21.87% 0.08 24.6)
XYZ	xyz(1.6520, 0.9125, 0.2614)
Luminance	0.0091 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370406 #043735

analogous

#370420 #370406 #371C04

triadic

#370406 #063704 #040637

tetradic

#370406 #203704 #043735 #1C0437

square

#370406 #203704 #043735 #1C0437

split-complementary

#370406 #04371C #042037

monochromatic

#1D0203 #1D0203 #370406 #70080C #A90C12

Accessibility & contrast

On white

17.76

#370406 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#370406 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370406

17.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370406	#FFFFFF	#000000	##FFFFFF
##370406	1.00	17.76	1.18	17.76
#FFFFFF	17.76	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#131106

Deuteranopia (green-blind)

#201C04

Tritanopia (blue-blind)

#3E0005

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #370406;
/* rgb */ color: rgb(55, 4, 6);
/* oklch */ color: oklch(21.9% 0.080 24.6);

Tailwind

colors: {
  custom: {
    50: '#724949',
    500: '#370406',
    950: '#000000',
  },
}

SCSS

$custom: #370406;
$custom-light: #724949;
$custom-dark: #000000;

JSON

{
  "hex": "#370406",
  "rgb": {
    "r": 55,
    "g": 4,
    "b": 6
  },
  "hsl": {
    "h": 357.647,
    "s": 86.441,
    "l": 11.569
  },
  "oklch": {
    "l": 0.21868,
    "c": 0.07969,
    "h": 24.6
  },
  "luminance": 0.00912
}

Semantic roles & 50–950 ramp

primary

#370406

secondary

#1E7975

accent

#FDF42B

background

#F7F4F4

surface

#EDE7E6

border

#C8C3C2

text

#090100

muted

#7B7777

Preview Lab

Preview with #370406

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

Preview Lab → · Contrast checker → · Palette generator →