#370A09#370A09

#370A09 is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.7% C 0.072 H 26.0°. Best body text is #FFFFFF at 17.36:1 contrast (WCAG AA passes).

Color values

HEX	#370A09
RGB	rgb(55, 10, 9)
HSL	hsl(1, 72%, 13%)
HSV	hsv(1, 84%, 22%)
CMYK	cmyk(0%, 81.8%, 83.6%, 78.4%)
CIE-LAB	lab(9.40, 22.15, 10.91)
CIE-LCH	lch(9.40, 24.69, 26.23°)
OKLab	oklab(22.75% 0.0643 0.0314)
OKLCH	oklch(22.75% 0.072 26)
XYZ	xyz(1.7336, 1.0493, 0.3696)
Luminance	0.0105 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370A09 #093637

analogous

#37091F #370A09 #372109

triadic

#370A09 #09370A #0A0937

tetradic

#370A09 #1F3709 #093637 #210937

square

#370A09 #1F3709 #093637 #210937

split-complementary

#370A09 #093721 #091F37

monochromatic

#1A0504 #1A0504 #370A09 #6C1412 #A01D1A

Accessibility & contrast

On white

17.36

#370A09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#370A09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370A09

17.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370A09	#FFFFFF	#000000	##FFFFFF
##370A09	1.00	17.36	1.21	17.36
#FFFFFF	17.36	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171408

Deuteranopia (green-blind)

#221E08

Tritanopia (blue-blind)

#3D010A

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #370a09;
/* rgb */ color: rgb(55, 10, 9);
/* oklch */ color: oklch(22.7% 0.072 26.0);

Tailwind

colors: {
  custom: {
    50: '#724d4a',
    500: '#370a09',
    950: '#000000',
  },
}

SCSS

$custom: #370a09;
$custom-light: #724d4a;
$custom-dark: #000000;

JSON

{
  "hex": "#370a09",
  "rgb": {
    "r": 55,
    "g": 10,
    "b": 9
  },
  "hsl": {
    "h": 1.304,
    "s": 71.875,
    "l": 12.549
  },
  "oklch": {
    "l": 0.22745,
    "c": 0.07155,
    "h": 26
  },
  "luminance": 0.01049
}

Semantic roles & 50–950 ramp

primary

#370A09

secondary

#277375

accent

#EBEF39

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #370A09

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

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