#37090C#37090C

#37090C is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.7% C 0.072 H 21.7°. Best body text is #FFFFFF at 17.40:1 contrast (WCAG AA passes).

Color values

HEX	#37090C
RGB	rgb(55, 9, 12)
HSL	hsl(356, 72%, 13%)
HSV	hsv(356, 84%, 22%)
CMYK	cmyk(0%, 83.6%, 78.2%, 78.4%)
CIE-LAB	lab(9.27, 22.83, 9.47)
CIE-LCH	lch(9.27, 24.72, 22.53°)
OKLab	oklab(22.67% 0.0672 0.0267)
OKLCH	oklch(22.67% 0.072 21.7)
XYZ	xyz(1.7398, 1.0344, 0.4558)
Luminance	0.0103 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37090C #093734

analogous

#370923 #37090C #371D09

triadic

#37090C #0C3709 #090C37

tetradic

#37090C #233709 #093734 #1D0937

square

#37090C #233709 #093734 #1D0937

split-complementary

#37090C #09371D #092337

monochromatic

#1A0406 #1A0406 #37090C #6C1217 #A01A23

Accessibility & contrast

On white

17.40

#37090C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#37090C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37090C

17.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37090C	#FFFFFF	#000000	##FFFFFF
##37090C	1.00	17.40	1.21	17.40
#FFFFFF	17.40	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16140C

Deuteranopia (green-blind)

#211E0B

Tritanopia (blue-blind)

#3D000A

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #37090c;
/* rgb */ color: rgb(55, 9, 12);
/* oklch */ color: oklch(22.7% 0.072 21.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#37090c",
  "rgb": {
    "r": 55,
    "g": 9,
    "b": 12
  },
  "hsl": {
    "h": 356.087,
    "s": 71.875,
    "l": 12.549
  },
  "oklch": {
    "l": 0.22673,
    "c": 0.07235,
    "h": 21.7
  },
  "luminance": 0.01034
}

Semantic roles & 50–950 ramp

primary

#37090C

secondary

#277570

accent

#EFE339

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #37090C

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

Preview Lab → · Contrast checker → · Palette generator →