#37090D#37090D

#37090D is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.7% C 0.072 H 20.4°. Best body text is #FFFFFF at 17.39:1 contrast (WCAG AA passes).

Color values

HEX	#37090D
RGB	rgb(55, 9, 13)
HSL	hsl(355, 72%, 13%)
HSV	hsv(355, 84%, 22%)
CMYK	cmyk(0%, 83.6%, 76.4%, 78.4%)
CIE-LAB	lab(9.30, 22.90, 9.03)
CIE-LCH	lch(9.30, 24.62, 21.53°)
OKLab	oklab(22.7% 0.0677 0.0252)
OKLCH	oklch(22.7% 0.072 20.4)
XYZ	xyz(1.7461, 1.0369, 0.4889)
Luminance	0.0104 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37090D #093733

analogous

#370924 #37090D #371C09

triadic

#37090D #0D3709 #090D37

tetradic

#37090D #243709 #093733 #1C0937

square

#37090D #243709 #093733 #1C0937

split-complementary

#37090D #09371C #092437

monochromatic

#1A0406 #1A0406 #37090D #6C1219 #A01A26

Accessibility & contrast

On white

17.39

#37090D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#37090D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37090D

17.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37090D	#FFFFFF	#000000	##FFFFFF
##37090D	1.00	17.39	1.21	17.39
#FFFFFF	17.39	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16140D

Deuteranopia (green-blind)

#211E0C

Tritanopia (blue-blind)

#3D000B

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #37090d;
/* rgb */ color: rgb(55, 9, 13);
/* oklch */ color: oklch(22.7% 0.072 20.4);

Tailwind

colors: {
  custom: {
    50: '#724c4c',
    500: '#37090d',
    950: '#000000',
  },
}

SCSS

$custom: #37090d;
$custom-light: #724c4c;
$custom-dark: #000000;

JSON

{
  "hex": "#37090d",
  "rgb": {
    "r": 55,
    "g": 9,
    "b": 13
  },
  "hsl": {
    "h": 354.783,
    "s": 71.875,
    "l": 12.549
  },
  "oklch": {
    "l": 0.22695,
    "c": 0.07226,
    "h": 20.4
  },
  "luminance": 0.01037
}

Semantic roles & 50–950 ramp

primary

#37090D

secondary

#27756E

accent

#EFDF39

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #37090D

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

Preview Lab → · Contrast checker → · Palette generator →