#370D09#370D09

#370D09 is a very dark, moderate red. Relative luminance 0.011; OKLCH L 23.2% C 0.068 H 28.8°. Best body text is #FFFFFF at 17.16:1 contrast (WCAG AA passes).

Color values

HEX	#370D09
RGB	rgb(55, 13, 9)
HSL	hsl(5, 72%, 13%)
HSV	hsv(5, 84%, 22%)
CMYK	cmyk(0%, 76.4%, 83.6%, 78.4%)
CIE-LAB	lab(9.95, 20.64, 11.71)
CIE-LCH	lch(9.95, 23.73, 29.56°)
OKLab	oklab(23.16% 0.0595 0.0328)
OKLCH	oklch(23.16% 0.068 28.8)
XYZ	xyz(1.7690, 1.1200, 0.3814)
Luminance	0.0112 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370D09 #093337

analogous

#37091C #370D09 #372409

triadic

#370D09 #09370D #0D0937

tetradic

#370D09 #1C3709 #093337 #240937

square

#370D09 #1C3709 #093337 #240937

split-complementary

#370D09 #093724 #091C37

monochromatic

#1A0604 #1A0604 #370D09 #6C1912 #A0261A

Accessibility & contrast

On white

17.16

#370D09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#370D09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370D09

17.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370D09	#FFFFFF	#000000	##FFFFFF
##370D09	1.00	17.16	1.22	17.16
#FFFFFF	17.16	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191608

Deuteranopia (green-blind)

#231F08

Tritanopia (blue-blind)

#3D040C

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #370d09;
/* rgb */ color: rgb(55, 13, 9);
/* oklch */ color: oklch(23.2% 0.068 28.8);

Tailwind

colors: {
  custom: {
    50: '#724e4a',
    500: '#370d09',
    950: '#000000',
  },
}

SCSS

$custom: #370d09;
$custom-light: #724e4a;
$custom-dark: #000000;

JSON

{
  "hex": "#370d09",
  "rgb": {
    "r": 55,
    "g": 13,
    "b": 9
  },
  "hsl": {
    "h": 5.217,
    "s": 71.875,
    "l": 12.549
  },
  "oklch": {
    "l": 0.23164,
    "c": 0.06795,
    "h": 28.8
  },
  "luminance": 0.0112
}

Semantic roles & 50–950 ramp

primary

#370D09

secondary

#276E75

accent

#DFEF39

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080201

muted

#7B7877

Preview Lab

Preview with #370D09

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

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