#370C09#370C09

#370C09 is a very dark, moderate red. Relative luminance 0.011; OKLCH L 23.0% C 0.069 H 27.8°. Best body text is #FFFFFF at 17.23:1 contrast (WCAG AA passes).

Color values

HEX	#370C09
RGB	rgb(55, 12, 9)
HSL	hsl(4, 72%, 13%)
HSV	hsv(4, 84%, 22%)
CMYK	cmyk(0%, 78.2%, 83.6%, 78.4%)
CIE-LAB	lab(9.76, 21.16, 11.43)
CIE-LCH	lch(9.76, 24.05, 28.38°)
OKLab	oklab(23.02% 0.0612 0.0323)
OKLCH	oklch(23.02% 0.069 27.8)
XYZ	xyz(1.7565, 1.0951, 0.3773)
Luminance	0.0109 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370C09 #093437

analogous

#37091D #370C09 #372309

triadic

#370C09 #09370C #0C0937

tetradic

#370C09 #1D3709 #093437 #230937

square

#370C09 #1D3709 #093437 #230937

split-complementary

#370C09 #093723 #091D37

monochromatic

#1A0604 #1A0604 #370C09 #6C1712 #A0231A

Accessibility & contrast

On white

17.23

#370C09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#370C09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370C09

17.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370C09	#FFFFFF	#000000	##FFFFFF
##370C09	1.00	17.23	1.22	17.23
#FFFFFF	17.23	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#181508

Deuteranopia (green-blind)

#231E08

Tritanopia (blue-blind)

#3D030C

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #370c09;
/* rgb */ color: rgb(55, 12, 9);
/* oklch */ color: oklch(23.0% 0.069 27.8);

Tailwind

colors: {
  custom: {
    50: '#724e4a',
    500: '#370c09',
    950: '#000000',
  },
}

SCSS

$custom: #370c09;
$custom-light: #724e4a;
$custom-dark: #000000;

JSON

{
  "hex": "#370c09",
  "rgb": {
    "r": 55,
    "g": 12,
    "b": 9
  },
  "hsl": {
    "h": 3.913,
    "s": 71.875,
    "l": 12.549
  },
  "oklch": {
    "l": 0.23018,
    "c": 0.06917,
    "h": 27.8
  },
  "luminance": 0.01095
}

Semantic roles & 50–950 ramp

primary

#370C09

secondary

#277075

accent

#E3EF39

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #370C09

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

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