#370C03#370C03

#370C03 is a very dark, moderate red. Relative luminance 0.011; OKLCH L 22.9% C 0.071 H 35.3°. Best body text is #FFFFFF at 17.26:1 contrast (WCAG AA passes).

Color values

HEX	#370C03
RGB	rgb(55, 12, 3)
HSL	hsl(10, 90%, 11%)
HSV	hsv(10, 95%, 22%)
CMYK	cmyk(0%, 78.2%, 94.5%, 78.4%)
CIE-LAB	lab(9.66, 20.78, 13.73)
CIE-LCH	lch(9.66, 24.90, 33.46°)
OKLab	oklab(22.91% 0.058 0.0411)
OKLCH	oklch(22.91% 0.071 35.3)
XYZ	xyz(1.7237, 1.0820, 0.2042)
Luminance	0.0108 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370C03 #032E37

analogous

#370314 #370C03 #372603

triadic

#370C03 #03370C #0C0337

tetradic

#370C03 #143703 #032E37 #260337

square

#370C03 #143703 #032E37 #260337

split-complementary

#370C03 #033726 #031437

monochromatic

#1D0602 #1D0602 #370C03 #711906 #AB2509

Accessibility & contrast

On white

17.26

#370C03 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#370C03 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370C03

17.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370C03	#FFFFFF	#000000	##FFFFFF
##370C03	1.00	17.26	1.22	17.26
#FFFFFF	17.26	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191502

Deuteranopia (green-blind)

#231E02

Tritanopia (blue-blind)

#3E020A

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #370c03;
/* rgb */ color: rgb(55, 12, 3);
/* oklch */ color: oklch(22.9% 0.071 35.3);

Tailwind

colors: {
  custom: {
    50: '#724d48',
    500: '#370c03',
    950: '#000000',
  },
}

SCSS

$custom: #370c03;
$custom-light: #724d48;
$custom-dark: #000000;

JSON

{
  "hex": "#370c03",
  "rgb": {
    "r": 55,
    "g": 12,
    "b": 3
  },
  "hsl": {
    "h": 10.385,
    "s": 89.655,
    "l": 11.373
  },
  "oklch": {
    "l": 0.22908,
    "c": 0.07109,
    "h": 35.3
  },
  "luminance": 0.01082
}

Semantic roles & 50–950 ramp

primary

#370C03

secondary

#1C6A7A

accent

#DAFF29

background

#F7F4F4

surface

#EDE7E6

border

#C8C3C2

text

#080100

muted

#7B7777

Preview Lab

Preview with #370C03

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

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