#370A05#370A05

#370A05 is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.7% C 0.073 H 30.9°. Best body text is #FFFFFF at 17.38:1 contrast (WCAG AA passes).

Color values

HEX	#370A05
RGB	rgb(55, 10, 5)
HSL	hsl(6, 83%, 12%)
HSV	hsv(6, 91%, 22%)
CMYK	cmyk(0%, 81.8%, 90.9%, 78.4%)
CIE-LAB	lab(9.32, 21.90, 12.44)
CIE-LCH	lch(9.32, 25.19, 29.59°)
OKLab	oklab(22.67% 0.0623 0.0372)
OKLCH	oklch(22.67% 0.073 30.9)
XYZ	xyz(1.7117, 1.0405, 0.2543)
Luminance	0.0104 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370A05 #053237

analogous

#370519 #370A05 #372305

triadic

#370A05 #05370A #0A0537

tetradic

#370A05 #193705 #053237 #230537

square

#370A05 #193705 #053237 #230537

split-complementary

#370A05 #053723 #051937

monochromatic

#1C0503 #1C0503 #370A05 #6F140A #A71E0F

Accessibility & contrast

On white

17.38

#370A05 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#370A05 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370A05

17.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370A05	#FFFFFF	#000000	##FFFFFF
##370A05	1.00	17.38	1.21	17.38
#FFFFFF	17.38	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171404

Deuteranopia (green-blind)

#221E04

Tritanopia (blue-blind)

#3E0009

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #370a05;
/* rgb */ color: rgb(55, 10, 5);
/* oklch */ color: oklch(22.7% 0.073 30.9);

Tailwind

colors: {
  custom: {
    50: '#724c49',
    500: '#370a05',
    950: '#000000',
  },
}

SCSS

$custom: #370a05;
$custom-light: #724c49;
$custom-dark: #000000;

JSON

{
  "hex": "#370a05",
  "rgb": {
    "r": 55,
    "g": 10,
    "b": 5
  },
  "hsl": {
    "h": 6,
    "s": 83.333,
    "l": 11.765
  },
  "oklch": {
    "l": 0.2267,
    "c": 0.07252,
    "h": 30.9
  },
  "luminance": 0.0104
}

Semantic roles & 50–950 ramp

primary

#370A05

secondary

#206F78

accent

#E5FA2E

background

#F7F4F4

surface

#EDE7E6

border

#C8C3C2

text

#080100

muted

#7B7777

Preview Lab

Preview with #370A05

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

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