#370F17#370F17

#370F17 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.8% C 0.064 H 11.3°. Best body text is #FFFFFF at 16.89:1 contrast (WCAG AA passes).

Color values

HEX	#370F17
RGB	rgb(55, 15, 23)
HSL	hsl(348, 57%, 14%)
HSV	hsv(348, 73%, 22%)
CMYK	cmyk(0%, 72.7%, 58.2%, 78.4%)
CIE-LAB	lab(10.67, 20.75, 4.89)
CIE-LCH	lch(10.67, 21.32, 13.26°)
OKLab	oklab(23.81% 0.0628 0.0125)
OKLCH	oklch(23.81% 0.064 11.3)
XYZ	xyz(1.9012, 1.2160, 0.9450)
Luminance	0.0122 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370F17 #0F372F

analogous

#370F2B #370F17 #371B0F

triadic

#370F17 #17370F #0F1737

tetradic

#370F17 #2B370F #0F372F #1B0F37

square

#370F17 #2B370F #0F372F #1B0F37

split-complementary

#370F17 #0F371B #0F2B37

monochromatic

#18070A #18070A #370F17 #671C2B #97293F

Accessibility & contrast

On white

16.89

#370F17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#370F17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370F17

16.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370F17	#FFFFFF	#000000	##FFFFFF
##370F17	1.00	16.89	1.24	16.89
#FFFFFF	16.89	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#181817

Deuteranopia (green-blind)

#222016

Tritanopia (blue-blind)

#3D0912

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #370f17;
/* rgb */ color: rgb(55, 15, 23);
/* oklch */ color: oklch(23.8% 0.064 11.3);

Tailwind

colors: {
  custom: {
    50: '#715053',
    500: '#370f17',
    950: '#000000',
  },
}

SCSS

$custom: #370f17;
$custom-light: #715053;
$custom-dark: #000000;

JSON

{
  "hex": "#370f17",
  "rgb": {
    "r": 55,
    "g": 15,
    "b": 23
  },
  "hsl": {
    "h": 348,
    "s": 57.143,
    "l": 13.725
  },
  "oklch": {
    "l": 0.23806,
    "c": 0.06407,
    "h": 11.3
  },
  "luminance": 0.01216
}

Semantic roles & 50–950 ramp

primary

#370F17

secondary

#317164

accent

#E0C247

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080202

muted

#7B7878

Preview Lab

Preview with #370F17

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

Preview Lab → · Contrast checker → · Palette generator →