#370911#370911

#370911 is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.8% C 0.072 H 15.2°. Best body text is #FFFFFF at 17.36:1 contrast (WCAG AA passes).

Color values

HEX	#370911
RGB	rgb(55, 9, 17)
HSL	hsl(350, 72%, 13%)
HSV	hsv(350, 84%, 22%)
CMYK	cmyk(0%, 83.6%, 69.1%, 78.4%)
CIE-LAB	lab(9.39, 23.22, 7.04)
CIE-LCH	lch(9.39, 24.26, 16.88°)
OKLab	oklab(22.79% 0.0697 0.0189)
OKLCH	oklch(22.79% 0.072 15.2)
XYZ	xyz(1.7746, 1.0483, 0.6391)
Luminance	0.0105 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370911 #09372F

analogous

#370928 #370911 #371809

triadic

#370911 #113709 #091137

tetradic

#370911 #283709 #09372F #180937

square

#370911 #283709 #09372F #180937

split-complementary

#370911 #093718 #092837

monochromatic

#1A0408 #1A0408 #370911 #6C1221 #A01A32

Accessibility & contrast

On white

17.36

#370911 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#370911 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370911

17.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370911	#FFFFFF	#000000	##FFFFFF
##370911	1.00	17.36	1.21	17.36
#FFFFFF	17.36	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#151411

Deuteranopia (green-blind)

#211E10

Tritanopia (blue-blind)

#3D010C

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #370911;
/* rgb */ color: rgb(55, 9, 17);
/* oklch */ color: oklch(22.8% 0.072 15.2);

Tailwind

colors: {
  custom: {
    50: '#724c4f',
    500: '#370911',
    950: '#000000',
  },
}

SCSS

$custom: #370911;
$custom-light: #724c4f;
$custom-dark: #000000;

JSON

{
  "hex": "#370911",
  "rgb": {
    "r": 55,
    "g": 9,
    "b": 17
  },
  "hsl": {
    "h": 349.565,
    "s": 71.875,
    "l": 12.549
  },
  "oklch": {
    "l": 0.22794,
    "c": 0.0722,
    "h": 15.2
  },
  "luminance": 0.01048
}

Semantic roles & 50–950 ramp

primary

#370911

secondary

#277567

accent

#EFCF39

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #370911

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

Preview Lab → · Contrast checker → · Palette generator →