#370909#370909

#370909 is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.6% C 0.073 H 25.1°. Best body text is #FFFFFF at 17.42:1 contrast (WCAG AA passes).

Color values

HEX	#370909
RGB	rgb(55, 9, 9)
HSL	hsl(0, 72%, 13%)
HSV	hsv(0, 84%, 22%)
CMYK	cmyk(0%, 83.6%, 83.6%, 78.4%)
CIE-LAB	lab(9.22, 22.64, 10.66)
CIE-LCH	lch(9.22, 25.02, 25.22°)
OKLab	oklab(22.61% 0.0658 0.0309)
OKLCH	oklch(22.61% 0.073 25.1)
XYZ	xyz(1.7227, 1.0276, 0.3660)
Luminance	0.0103 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370909 #093737

analogous

#370920 #370909 #372009

triadic

#370909 #093709 #090937

tetradic

#370909 #203709 #093737 #200937

square

#370909 #203709 #093737 #200937

split-complementary

#370909 #093720 #092037

monochromatic

#1A0404 #1A0404 #370909 #6C1212 #A01A1A

Accessibility & contrast

On white

17.42

#370909 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#370909 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370909

17.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370909	#FFFFFF	#000000	##FFFFFF
##370909	1.00	17.42	1.21	17.42
#FFFFFF	17.42	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161409

Deuteranopia (green-blind)

#221E08

Tritanopia (blue-blind)

#3D000A

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #370909;
/* rgb */ color: rgb(55, 9, 9);
/* oklch */ color: oklch(22.6% 0.073 25.1);

Tailwind

colors: {
  custom: {
    50: '#724c4a',
    500: '#370909',
    950: '#000000',
  },
}

SCSS

$custom: #370909;
$custom-light: #724c4a;
$custom-dark: #000000;

JSON

{
  "hex": "#370909",
  "rgb": {
    "r": 55,
    "g": 9,
    "b": 9
  },
  "hsl": {
    "h": 0,
    "s": 71.875,
    "l": 12.549
  },
  "oklch": {
    "l": 0.22614,
    "c": 0.07273,
    "h": 25.1
  },
  "luminance": 0.01027
}

Semantic roles & 50–950 ramp

primary

#370909

secondary

#277575

accent

#EFEF39

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #370909

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

Preview Lab → · Contrast checker → · Palette generator →