#370B37#370B37

#370B37 is a very dark, moderate purple. Relative luminance 0.013; OKLCH L 24.9% C 0.092 H 327.9°. Best body text is #FFFFFF at 16.60:1 contrast (WCAG AA passes).

Color values

HEX	#370B37
RGB	rgb(55, 11, 55)
HSL	hsl(300, 67%, 13%)
HSV	hsv(300, 80%, 22%)
CMYK	cmyk(0%, 80%, 0%, 78.4%)
CIE-LAB	lab(11.47, 27.98, -17.68)
CIE-LCH	lch(11.47, 33.10, 327.72°)
OKLab	oklab(24.88% 0.078 -0.0489)
OKLCH	oklch(24.88% 0.092 327.9)
XYZ	xyz(2.3848, 1.3276, 3.7443)
Luminance	0.0133 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370B37 #0B370B

analogous

#210B37 #370B37 #370B21

triadic

#370B37 #37370B #0B3737

tetradic

#370B37 #37210B #0B370B #0B2137

square

#370B37 #37210B #0B370B #0B2137

split-complementary

#370B37 #21370B #0B3721

monochromatic

#1A051A #1A051A #370B37 #6A156A #9D1F9D

Accessibility & contrast

On white

16.60

#370B37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#370B37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370B37

16.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370B37	#FFFFFF	#000000	##FFFFFF
##370B37	1.00	16.60	1.27	16.60
#FFFFFF	16.60	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#051B38

Deuteranopia (green-blind)

#162036

Tritanopia (blue-blind)

#391120

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #370b37;
/* rgb */ color: rgb(55, 11, 55);
/* oklch */ color: oklch(24.9% 0.092 327.9);

Tailwind

colors: {
  custom: {
    50: '#704f6e',
    500: '#370b37',
    950: '#000000',
  },
}

SCSS

$custom: #370b37;
$custom-light: #704f6e;
$custom-dark: #000000;

JSON

{
  "hex": "#370b37",
  "rgb": {
    "r": 55,
    "g": 11,
    "b": 55
  },
  "hsl": {
    "h": 300,
    "s": 66.667,
    "l": 12.941
  },
  "oklch": {
    "l": 0.24883,
    "c": 0.09211,
    "h": 327.9
  },
  "luminance": 0.01327
}

Semantic roles & 50–950 ramp

primary

#370B37

secondary

#2A742A

accent

#EA3E3E

background

#F6F4F6

surface

#ECE7EB

border

#C7C3C6

text

#080207

muted

#7B787A

Preview Lab

Preview with #370B37

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

Preview Lab → · Contrast checker → · Palette generator →