#370C05#370C05

#370C05 is a very dark, moderate red. Relative luminance 0.011; OKLCH L 22.9% C 0.070 H 32.7°. Best body text is #FFFFFF at 17.25:1 contrast (WCAG AA passes).

Color values

HEX	#370C05
RGB	rgb(55, 12, 5)
HSL	hsl(8, 83%, 12%)
HSV	hsv(8, 91%, 22%)
CMYK	cmyk(0%, 78.2%, 90.9%, 78.4%)
CIE-LAB	lab(9.69, 20.90, 12.96)
CIE-LCH	lch(9.69, 24.60, 31.81°)
OKLab	oklab(22.95% 0.0592 0.038)
OKLCH	oklch(22.95% 0.07 32.7)
XYZ	xyz(1.7346, 1.0864, 0.2619)
Luminance	0.0109 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370C05 #053037

analogous

#370517 #370C05 #372505

triadic

#370C05 #05370C #0C0537

tetradic

#370C05 #173705 #053037 #250537

square

#370C05 #173705 #053037 #250537

split-complementary

#370C05 #053725 #051737

monochromatic

#1C0603 #1C0603 #370C05 #6F180A #A7240F

Accessibility & contrast

On white

17.25

#370C05 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#370C05 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370C05

17.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370C05	#FFFFFF	#000000	##FFFFFF
##370C05	1.00	17.25	1.22	17.25
#FFFFFF	17.25	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#181504

Deuteranopia (green-blind)

#231E04

Tritanopia (blue-blind)

#3D020A

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #370c05;
/* rgb */ color: rgb(55, 12, 5);
/* oklch */ color: oklch(22.9% 0.070 32.7);

Tailwind

colors: {
  custom: {
    50: '#724e49',
    500: '#370c05',
    950: '#000000',
  },
}

SCSS

$custom: #370c05;
$custom-light: #724e49;
$custom-dark: #000000;

JSON

{
  "hex": "#370c05",
  "rgb": {
    "r": 55,
    "g": 12,
    "b": 5
  },
  "hsl": {
    "h": 8.4,
    "s": 83.333,
    "l": 11.765
  },
  "oklch": {
    "l": 0.22945,
    "c": 0.07031,
    "h": 32.7
  },
  "luminance": 0.01086
}

Semantic roles & 50–950 ramp

primary

#370C05

secondary

#206C78

accent

#DDFA2E

background

#F7F4F4

surface

#EDE7E6

border

#C8C3C2

text

#080100

muted

#7B7777

Preview Lab

Preview with #370C05

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

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