#37110B#37110B

#37110B is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.8% C 0.062 H 31.2°. Best body text is #FFFFFF at 16.84:1 contrast (WCAG AA passes).

Color values

HEX	#37110B
RGB	rgb(55, 17, 11)
HSL	hsl(8, 67%, 13%)
HSV	hsv(8, 80%, 22%)
CMYK	cmyk(0%, 69.1%, 80%, 78.4%)
CIE-LAB	lab(10.83, 18.52, 12.11)
CIE-LCH	lch(10.83, 22.13, 33.19°)
OKLab	oklab(23.84% 0.0534 0.0323)
OKLCH	oklch(23.84% 0.062 31.2)
XYZ	xyz(1.8366, 1.2375, 0.4587)
Luminance	0.0124 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37110B #0B3137

analogous

#370B1B #37110B #37270B

triadic

#37110B #0B3711 #110B37

tetradic

#37110B #1B370B #0B3137 #270B37

square

#37110B #1B370B #0B3137 #270B37

split-complementary

#37110B #0B3727 #0B1B37

monochromatic

#1A0805 #1A0805 #37110B #6A2115 #9D311F

Accessibility & contrast

On white

16.84

#37110B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#37110B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37110B

16.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37110B	#FFFFFF	#000000	##FFFFFF
##37110B	1.00	16.84	1.25	16.84
#FFFFFF	16.84	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B180A

Deuteranopia (green-blind)

#25200A

Tritanopia (blue-blind)

#3D0910

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #37110b;
/* rgb */ color: rgb(55, 17, 11);
/* oklch */ color: oklch(23.8% 0.062 31.2);

Tailwind

colors: {
  custom: {
    50: '#71514b',
    500: '#37110b',
    950: '#000000',
  },
}

SCSS

$custom: #37110b;
$custom-light: #71514b;
$custom-dark: #000000;

JSON

{
  "hex": "#37110b",
  "rgb": {
    "r": 55,
    "g": 17,
    "b": 11
  },
  "hsl": {
    "h": 8.182,
    "s": 66.667,
    "l": 12.941
  },
  "oklch": {
    "l": 0.23835,
    "c": 0.06243,
    "h": 31.2
  },
  "luminance": 0.01237
}

Semantic roles & 50–950 ramp

primary

#37110B

secondary

#2A6A74

accent

#D2EA3E

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080201

muted

#7B7877

Preview Lab

Preview with #37110B

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

Preview Lab → · Contrast checker → · Palette generator →