#370504#370504

#370504 is a very dark, moderate red. Relative luminance 0.009; OKLCH L 22.0% C 0.079 H 27.9°. Best body text is #FFFFFF at 17.71:1 contrast (WCAG AA passes).

Color values

HEX	#370504
RGB	rgb(55, 5, 4)
HSL	hsl(1, 86%, 12%)
HSV	hsv(1, 93%, 22%)
CMYK	cmyk(0%, 90.9%, 92.7%, 78.4%)
CIE-LAB	lab(8.39, 24.37, 11.50)
CIE-LCH	lch(8.39, 26.95, 25.27°)
OKLab	oklab(21.97% 0.0696 0.0368)
OKLCH	oklch(21.97% 0.079 27.9)
XYZ	xyz(1.6519, 0.9298, 0.2073)
Luminance	0.0093 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370504 #043637

analogous

#37041D #370504 #371F04

triadic

#370504 #043705 #050437

tetradic

#370504 #1D3704 #043637 #1F0437

square

#370504 #1D3704 #043637 #1F0437

split-complementary

#370504 #04371F #041D37

monochromatic

#1D0302 #1D0302 #370504 #700A08 #A90F0C

Accessibility & contrast

On white

17.71

#370504 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#370504 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370504

17.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370504	#FFFFFF	#000000	##FFFFFF
##370504	1.00	17.71	1.19	17.71
#FFFFFF	17.71	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#141103

Deuteranopia (green-blind)

#211C03

Tritanopia (blue-blind)

#3E0005

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #370504;
/* rgb */ color: rgb(55, 5, 4);
/* oklch */ color: oklch(22.0% 0.079 27.9);

Tailwind

colors: {
  custom: {
    50: '#724a48',
    500: '#370504',
    950: '#000000',
  },
}

SCSS

$custom: #370504;
$custom-light: #724a48;
$custom-dark: #000000;

JSON

{
  "hex": "#370504",
  "rgb": {
    "r": 55,
    "g": 5,
    "b": 4
  },
  "hsl": {
    "h": 1.176,
    "s": 86.441,
    "l": 11.569
  },
  "oklch": {
    "l": 0.21969,
    "c": 0.07876,
    "h": 27.9
  },
  "luminance": 0.0093
}

Semantic roles & 50–950 ramp

primary

#370504

secondary

#1E7779

accent

#F9FD2B

background

#F7F4F4

surface

#EDE7E6

border

#C8C3C2

text

#090100

muted

#7B7777

Preview Lab

Preview with #370504

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

Preview Lab → · Contrast checker → · Palette generator →