#370F11#370F11

#370F11 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.6% C 0.064 H 20.5°. Best body text is #FFFFFF at 16.95:1 contrast (WCAG AA passes).

Color values

HEX	#370F11
RGB	rgb(55, 15, 17)
HSL	hsl(357, 57%, 14%)
HSV	hsv(357, 73%, 22%)
CMYK	cmyk(0%, 72.7%, 69.1%, 78.4%)
CIE-LAB	lab(10.52, 20.14, 8.64)
CIE-LCH	lch(10.52, 21.92, 23.22°)
OKLab	oklab(23.64% 0.0599 0.0224)
OKLCH	oklch(23.64% 0.064 20.5)
XYZ	xyz(1.8477, 1.1946, 0.6635)
Luminance	0.0119 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370F11 #0F3735

analogous

#370F25 #370F11 #37210F

triadic

#370F11 #11370F #0F1137

tetradic

#370F11 #25370F #0F3735 #210F37

square

#370F11 #25370F #0F3735 #210F37

split-complementary

#370F11 #0F3721 #0F2537

monochromatic

#180707 #180707 #370F11 #671C20 #97292F

Accessibility & contrast

On white

16.95

#370F11 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#370F11 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370F11

16.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370F11	#FFFFFF	#000000	##FFFFFF
##370F11	1.00	16.95	1.24	16.95
#FFFFFF	16.95	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191711

Deuteranopia (green-blind)

#232010

Tritanopia (blue-blind)

#3D0810

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #370f11;
/* rgb */ color: rgb(55, 15, 17);
/* oklch */ color: oklch(23.6% 0.064 20.5);

Tailwind

colors: {
  custom: {
    50: '#714f4f',
    500: '#370f11',
    950: '#000000',
  },
}

SCSS

$custom: #370f11;
$custom-light: #714f4f;
$custom-dark: #000000;

JSON

{
  "hex": "#370f11",
  "rgb": {
    "r": 55,
    "g": 15,
    "b": 17
  },
  "hsl": {
    "h": 357,
    "s": 57.143,
    "l": 13.725
  },
  "oklch": {
    "l": 0.23637,
    "c": 0.06395,
    "h": 20.5
  },
  "luminance": 0.01194
}

Semantic roles & 50–950 ramp

primary

#370F11

secondary

#31716E

accent

#E0D947

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080201

muted

#7B7877

Preview Lab

Preview with #370F11

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

Preview Lab → · Contrast checker → · Palette generator →