#370A10#370A10

#370A10 is a very dark, moderate red. Relative luminance 0.011; OKLCH L 22.9% C 0.071 H 17.3°. Best body text is #FFFFFF at 17.31:1 contrast (WCAG AA passes).

Color values

HEX	#370A10
RGB	rgb(55, 10, 16)
HSL	hsl(352, 69%, 13%)
HSV	hsv(352, 82%, 22%)
CMYK	cmyk(0%, 81.8%, 70.9%, 78.4%)
CIE-LAB	lab(9.54, 22.65, 7.83)
CIE-LCH	lch(9.54, 23.96, 19.07°)
OKLab	oklab(22.9% 0.0676 0.0211)
OKLCH	oklch(22.9% 0.071 17.3)
XYZ	xyz(1.7778, 1.0670, 0.6024)
Luminance	0.0107 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370A10 #0A3731

analogous

#370A26 #370A10 #371A0A

triadic

#370A10 #10370A #0A1037

tetradic

#370A10 #26370A #0A3731 #1A0A37

square

#370A10 #26370A #0A3731 #1A0A37

split-complementary

#370A10 #0A371A #0A2637

monochromatic

#1A0508 #1A0508 #370A10 #6B131F #9F1D2E

Accessibility & contrast

On white

17.31

#370A10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#370A10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370A10

17.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370A10	#FFFFFF	#000000	##FFFFFF
##370A10	1.00	17.31	1.21	17.31
#FFFFFF	17.31	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161510

Deuteranopia (green-blind)

#211E0F

Tritanopia (blue-blind)

#3D020D

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #370a10;
/* rgb */ color: rgb(55, 10, 16);
/* oklch */ color: oklch(22.9% 0.071 17.3);

Tailwind

colors: {
  custom: {
    50: '#724d4e',
    500: '#370a10',
    950: '#000000',
  },
}

SCSS

$custom: #370a10;
$custom-light: #724d4e;
$custom-dark: #000000;

JSON

{
  "hex": "#370a10",
  "rgb": {
    "r": 55,
    "g": 10,
    "b": 16
  },
  "hsl": {
    "h": 352,
    "s": 69.231,
    "l": 12.745
  },
  "oklch": {
    "l": 0.22897,
    "c": 0.07085,
    "h": 17.3
  },
  "luminance": 0.01067
}

Semantic roles & 50–950 ramp

primary

#370A10

secondary

#28746A

accent

#ECD53C

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #370A10

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

Preview Lab → · Contrast checker → · Palette generator →