#37050B#37050B

#37050B is a very dark, moderate red. Relative luminance 0.009; OKLCH L 22.1% C 0.078 H 19.6°. Best body text is #FFFFFF at 17.66:1 contrast (WCAG AA passes).

Color values

HEX	#37050B
RGB	rgb(55, 5, 11)
HSL	hsl(353, 83%, 12%)
HSV	hsv(353, 91%, 22%)
CMYK	cmyk(0%, 90.9%, 80%, 78.4%)
CIE-LAB	lab(8.53, 24.80, 8.84)
CIE-LCH	lch(8.53, 26.32, 19.61°)
OKLab	oklab(22.11% 0.0733 0.0261)
OKLCH	oklch(22.11% 0.078 19.6)
XYZ	xyz(1.6904, 0.9452, 0.4100)
Luminance	0.0095 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37050B #053731

analogous

#370524 #37050B #371805

triadic

#37050B #0B3705 #050B37

tetradic

#37050B #243705 #053731 #180537

square

#37050B #243705 #053731 #180537

split-complementary

#37050B #053718 #052437

monochromatic

#1C0306 #1C0306 #37050B #6F0A16 #A70F21

Accessibility & contrast

On white

17.66

#37050B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#37050B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37050B

17.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37050B	#FFFFFF	#000000	##FFFFFF
##37050B	1.00	17.66	1.19	17.66
#FFFFFF	17.66	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13120B

Deuteranopia (green-blind)

#201C09

Tritanopia (blue-blind)

#3D0007

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #37050b;
/* rgb */ color: rgb(55, 5, 11);
/* oklch */ color: oklch(22.1% 0.078 19.6);

Tailwind

colors: {
  custom: {
    50: '#724a4b',
    500: '#37050b',
    950: '#000000',
  },
}

SCSS

$custom: #37050b;
$custom-light: #724a4b;
$custom-dark: #000000;

JSON

{
  "hex": "#37050b",
  "rgb": {
    "r": 55,
    "g": 5,
    "b": 11
  },
  "hsl": {
    "h": 352.8,
    "s": 83.333,
    "l": 11.765
  },
  "oklch": {
    "l": 0.22111,
    "c": 0.07778,
    "h": 19.6
  },
  "luminance": 0.00945
}

Semantic roles & 50–950 ramp

primary

#37050B

secondary

#20786E

accent

#FAE12E

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #37050B

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

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