#37080A#37080A

#37080A is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.5% C 0.074 H 23.2°. Best body text is #FFFFFF at 17.48:1 contrast (WCAG AA passes).

Color values

HEX	#37080A
RGB	rgb(55, 8, 10)
HSL	hsl(357, 75%, 12%)
HSV	hsv(357, 85%, 22%)
CMYK	cmyk(0%, 85.5%, 81.8%, 78.4%)
CIE-LAB	lab(9.06, 23.19, 10.02)
CIE-LCH	lch(9.06, 25.27, 23.37°)
OKLab	oklab(22.5% 0.0679 0.0291)
OKLCH	oklch(22.5% 0.074 23.2)
XYZ	xyz(1.7174, 1.0081, 0.3912)
Luminance	0.0101 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37080A #083735

analogous

#370822 #37080A #371E08

triadic

#37080A #0A3708 #080A37

tetradic

#37080A #223708 #083735 #1E0837

square

#37080A #223708 #083735 #1E0837

split-complementary

#37080A #08371E #082237

monochromatic

#1B0405 #1B0405 #37080A #6C1014 #A2181D

Accessibility & contrast

On white

17.48

#37080A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#37080A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37080A

17.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37080A	#FFFFFF	#000000	##FFFFFF
##37080A	1.00	17.48	1.20	17.48
#FFFFFF	17.48	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15130A

Deuteranopia (green-blind)

#211D09

Tritanopia (blue-blind)

#3D0009

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #37080a;
/* rgb */ color: rgb(55, 8, 10);
/* oklch */ color: oklch(22.5% 0.074 23.2);

Tailwind

colors: {
  custom: {
    50: '#724c4b',
    500: '#37080a',
    950: '#000000',
  },
}

SCSS

$custom: #37080a;
$custom-light: #724c4b;
$custom-dark: #000000;

JSON

{
  "hex": "#37080a",
  "rgb": {
    "r": 55,
    "g": 8,
    "b": 10
  },
  "hsl": {
    "h": 357.447,
    "s": 74.603,
    "l": 12.353
  },
  "oklch": {
    "l": 0.225,
    "c": 0.07383,
    "h": 23.2
  },
  "luminance": 0.01008
}

Semantic roles & 50–950 ramp

primary

#37080A

secondary

#257672

accent

#F1E937

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #37080A

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

Preview Lab → · Contrast checker → · Palette generator →