#370409#370409

#370409 is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.9% C 0.079 H 21.1°. Best body text is #FFFFFF at 17.74:1 contrast (WCAG AA passes).

Color values

HEX	#370409
RGB	rgb(55, 4, 9)
HSL	hsl(354, 86%, 12%)
HSV	hsv(354, 93%, 22%)
CMYK	cmyk(0%, 92.7%, 83.6%, 78.4%)
CIE-LAB	lab(8.30, 25.22, 9.33)
CIE-LCH	lch(8.30, 26.89, 20.30°)
OKLab	oklab(21.93% 0.074 0.0285)
OKLCH	oklch(21.93% 0.079 21.1)
XYZ	xyz(1.6685, 0.9190, 0.3479)
Luminance	0.0092 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370409 #043732

analogous

#370423 #370409 #371904

triadic

#370409 #093704 #040937

tetradic

#370409 #233704 #043732 #190437

square

#370409 #233704 #043732 #190437

split-complementary

#370409 #043719 #042337

monochromatic

#1D0205 #1D0205 #370409 #700812 #A90C1C

Accessibility & contrast

On white

17.74

#370409 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#370409 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370409

17.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370409	#FFFFFF	#000000	##FFFFFF
##370409	1.00	17.74	1.18	17.74
#FFFFFF	17.74	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#131109

Deuteranopia (green-blind)

#201C07

Tritanopia (blue-blind)

#3D0006

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #370409;
/* rgb */ color: rgb(55, 4, 9);
/* oklch */ color: oklch(21.9% 0.079 21.1);

Tailwind

colors: {
  custom: {
    50: '#72494a',
    500: '#370409',
    950: '#000000',
  },
}

SCSS

$custom: #370409;
$custom-light: #72494a;
$custom-dark: #000000;

JSON

{
  "hex": "#370409",
  "rgb": {
    "r": 55,
    "g": 4,
    "b": 9
  },
  "hsl": {
    "h": 354.118,
    "s": 86.441,
    "l": 11.569
  },
  "oklch": {
    "l": 0.21929,
    "c": 0.07934,
    "h": 21.1
  },
  "luminance": 0.00919
}

Semantic roles & 50–950 ramp

primary

#370409

secondary

#1E7970

accent

#FDE82B

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#090101

muted

#7B7777

Preview Lab

Preview with #370409

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

Preview Lab → · Contrast checker → · Palette generator →