#370F18#370F18

#370F18 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.8% C 0.064 H 9.7°. Best body text is #FFFFFF at 16.88:1 contrast (WCAG AA passes).

Color values

HEX	#370F18
RGB	rgb(55, 15, 24)
HSL	hsl(347, 57%, 14%)
HSV	hsv(347, 73%, 22%)
CMYK	cmyk(0%, 72.7%, 56.4%, 78.4%)
CIE-LAB	lab(10.70, 20.86, 4.18)
CIE-LCH	lch(10.70, 21.28, 11.32°)
OKLab	oklab(23.84% 0.0633 0.0108)
OKLCH	oklch(23.84% 0.064 9.7)
XYZ	xyz(1.9114, 1.2201, 0.9988)
Luminance	0.0122 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370F18 #0F372E

analogous

#370F2C #370F18 #371A0F

triadic

#370F18 #18370F #0F1837

tetradic

#370F18 #2C370F #0F372E #1A0F37

square

#370F18 #2C370F #0F372E #1A0F37

split-complementary

#370F18 #0F371A #0F2C37

monochromatic

#18070A #18070A #370F18 #671C2D #972942

Accessibility & contrast

On white

16.88

#370F18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#370F18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370F18

16.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370F18	#FFFFFF	#000000	##FFFFFF
##370F18	1.00	16.88	1.24	16.88
#FFFFFF	16.88	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#181818

Deuteranopia (green-blind)

#222017

Tritanopia (blue-blind)

#3D0912

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #370f18;
/* rgb */ color: rgb(55, 15, 24);
/* oklch */ color: oklch(23.8% 0.064 9.7);

Tailwind

colors: {
  custom: {
    50: '#715054',
    500: '#370f18',
    950: '#000000',
  },
}

SCSS

$custom: #370f18;
$custom-light: #715054;
$custom-dark: #000000;

JSON

{
  "hex": "#370f18",
  "rgb": {
    "r": 55,
    "g": 15,
    "b": 24
  },
  "hsl": {
    "h": 346.5,
    "s": 57.143,
    "l": 13.725
  },
  "oklch": {
    "l": 0.23838,
    "c": 0.06423,
    "h": 9.7
  },
  "luminance": 0.0122
}

Semantic roles & 50–950 ramp

primary

#370F18

secondary

#317163

accent

#E0BE47

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080202

muted

#7B7878

Preview Lab

Preview with #370F18

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

Preview Lab → · Contrast checker → · Palette generator →