#370407#370407

#370407 is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.9% C 0.080 H 23.4°. Best body text is #FFFFFF at 17.75:1 contrast (WCAG AA passes).

Color values

HEX	#370407
RGB	rgb(55, 4, 7)
HSL	hsl(356, 86%, 12%)
HSV	hsv(356, 93%, 22%)
CMYK	cmyk(0%, 92.7%, 87.3%, 78.4%)
CIE-LAB	lab(8.26, 25.09, 10.09)
CIE-LCH	lch(8.26, 27.05, 21.90°)
OKLab	oklab(21.89% 0.073 0.0315)
OKLCH	oklch(21.89% 0.08 23.4)
XYZ	xyz(1.6575, 0.9147, 0.2902)
Luminance	0.0091 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370407 #043734

analogous

#370421 #370407 #371B04

triadic

#370407 #073704 #040737

tetradic

#370407 #213704 #043734 #1B0437

square

#370407 #213704 #043734 #1B0437

split-complementary

#370407 #04371B #042137

monochromatic

#1D0204 #1D0204 #370407 #70080E #A90C16

Accessibility & contrast

On white

17.75

#370407 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#370407 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370407

17.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370407	#FFFFFF	#000000	##FFFFFF
##370407	1.00	17.75	1.18	17.75
#FFFFFF	17.75	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#131107

Deuteranopia (green-blind)

#201C05

Tritanopia (blue-blind)

#3E0005

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #370407;
/* rgb */ color: rgb(55, 4, 7);
/* oklch */ color: oklch(21.9% 0.080 23.4);

Tailwind

colors: {
  custom: {
    50: '#72494a',
    500: '#370407',
    950: '#000000',
  },
}

SCSS

$custom: #370407;
$custom-light: #72494a;
$custom-dark: #000000;

JSON

{
  "hex": "#370407",
  "rgb": {
    "r": 55,
    "g": 4,
    "b": 7
  },
  "hsl": {
    "h": 356.471,
    "s": 86.441,
    "l": 11.569
  },
  "oklch": {
    "l": 0.21888,
    "c": 0.07954,
    "h": 23.4
  },
  "luminance": 0.00914
}

Semantic roles & 50–950 ramp

primary

#370407

secondary

#1E7974

accent

#FDF02B

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#090101

muted

#7B7777

Preview Lab

Preview with #370407

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

Preview Lab → · Contrast checker → · Palette generator →