#370904#370904

#370904 is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.5% C 0.074 H 31.3°. Best body text is #FFFFFF at 17.45:1 contrast (WCAG AA passes).

Color values

HEX	#370904
RGB	rgb(55, 9, 4)
HSL	hsl(6, 86%, 12%)
HSV	hsv(6, 93%, 22%)
CMYK	cmyk(0%, 83.6%, 92.7%, 78.4%)
CIE-LAB	lab(9.13, 22.33, 12.57)
CIE-LCH	lch(9.13, 25.62, 29.37°)
OKLab	oklab(22.52% 0.0632 0.0384)
OKLCH	oklch(22.52% 0.074 31.3)
XYZ	xyz(1.6954, 1.0166, 0.2218)
Luminance	0.0102 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370904 #043237

analogous

#370419 #370904 #372304

triadic

#370904 #043709 #090437

tetradic

#370904 #193704 #043237 #230437

square

#370904 #193704 #043237 #230437

split-complementary

#370904 #043723 #041937

monochromatic

#1D0502 #1D0502 #370904 #701208 #A91C0C

Accessibility & contrast

On white

17.45

#370904 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#370904 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370904

17.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370904	#FFFFFF	#000000	##FFFFFF
##370904	1.00	17.45	1.20	17.45
#FFFFFF	17.45	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171303

Deuteranopia (green-blind)

#221D03

Tritanopia (blue-blind)

#3E0008

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #370904;
/* rgb */ color: rgb(55, 9, 4);
/* oklch */ color: oklch(22.5% 0.074 31.3);

Tailwind

colors: {
  custom: {
    50: '#724c48',
    500: '#370904',
    950: '#000000',
  },
}

SCSS

$custom: #370904;
$custom-light: #724c48;
$custom-dark: #000000;

JSON

{
  "hex": "#370904",
  "rgb": {
    "r": 55,
    "g": 9,
    "b": 4
  },
  "hsl": {
    "h": 5.882,
    "s": 86.441,
    "l": 11.569
  },
  "oklch": {
    "l": 0.22518,
    "c": 0.07395,
    "h": 31.3
  },
  "luminance": 0.01016
}

Semantic roles & 50–950 ramp

primary

#370904

secondary

#1E7079

accent

#E8FD2B

background

#F7F4F4

surface

#EDE7E6

border

#C8C3C2

text

#080100

muted

#7B7777

Preview Lab

Preview with #370904

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

Preview Lab → · Contrast checker → · Palette generator →