#370B16#370B16

#370B16 is a very dark, moderate red. Relative luminance 0.011; OKLCH L 23.2% C 0.070 H 9.5°. Best body text is #FFFFFF at 17.19:1 contrast (WCAG AA passes).

Color values

HEX	#370B16
RGB	rgb(55, 11, 22)
HSL	hsl(345, 67%, 13%)
HSV	hsv(345, 80%, 22%)
CMYK	cmyk(0%, 80%, 60%, 78.4%)
CIE-LAB	lab(9.87, 22.73, 4.49)
CIE-LCH	lch(9.87, 23.17, 11.17°)
OKLab	oklab(23.2% 0.069 0.0116)
OKLCH	oklch(23.2% 0.07 9.5)
XYZ	xyz(1.8402, 1.1097, 0.8762)
Luminance	0.0111 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370B16 #0B372C

analogous

#370B2C #370B16 #37160B

triadic

#370B16 #16370B #0B1637

tetradic

#370B16 #2C370B #0B372C #160B37

square

#370B16 #2C370B #0B372C #160B37

split-complementary

#370B16 #0B3716 #0B2C37

monochromatic

#1A050A #1A050A #370B16 #6A152A #9D1F3F

Accessibility & contrast

On white

17.19

#370B16 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#370B16 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370B16

17.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370B16	#FFFFFF	#000000	##FFFFFF
##370B16	1.00	17.19	1.22	17.19
#FFFFFF	17.19	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#151616

Deuteranopia (green-blind)

#211E15

Tritanopia (blue-blind)

#3D040F

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #370b16;
/* rgb */ color: rgb(55, 11, 22);
/* oklch */ color: oklch(23.2% 0.070 9.5);

Tailwind

colors: {
  custom: {
    50: '#714d52',
    500: '#370b16',
    950: '#000000',
  },
}

SCSS

$custom: #370b16;
$custom-light: #714d52;
$custom-dark: #000000;

JSON

{
  "hex": "#370b16",
  "rgb": {
    "r": 55,
    "g": 11,
    "b": 22
  },
  "hsl": {
    "h": 345,
    "s": 66.667,
    "l": 12.941
  },
  "oklch": {
    "l": 0.232,
    "c": 0.06999,
    "h": 9.5
  },
  "luminance": 0.01109
}

Semantic roles & 50–950 ramp

primary

#370B16

secondary

#2A7461

accent

#EABF3E

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080102

muted

#7B7778

Preview Lab

Preview with #370B16

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

Preview Lab → · Contrast checker → · Palette generator →