#370A3A#370A3A

#370A3A is a very dark, moderate purple. Relative luminance 0.013; OKLCH L 25.0% C 0.096 H 325.3°. Best body text is #FFFFFF at 16.57:1 contrast (WCAG AA passes).

Color values

HEX	#370A3A
RGB	rgb(55, 10, 58)
HSL	hsl(296, 71%, 13%)
HSV	hsv(296, 83%, 23%)
CMYK	cmyk(5.2%, 82.8%, 0%, 77.3%)
CIE-LAB	lab(11.52, 29.04, -19.76)
CIE-LCH	lch(11.52, 35.13, 325.77°)
OKLab	oklab(24.99% 0.0793 -0.055)
OKLCH	oklch(24.99% 0.096 325.3)
XYZ	xyz(2.4478, 1.3350, 4.1309)
Luminance	0.0134 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370A3A #0D3A0A

analogous

#1F0A3A #370A3A #3A0A25

triadic

#370A3A #3A370A #0A3A37

tetradic

#370A3A #3A1F0A #0D3A0A #0A253A

square

#370A3A #3A1F0A #0D3A0A #0A253A

split-complementary

#370A3A #253A0A #0A3A1F

monochromatic

#19051A #19051A #370A3A #68136E #9A1CA2

Accessibility & contrast

On white

16.57

#370A3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#370A3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370A3A

16.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370A3A	#FFFFFF	#000000	##FFFFFF
##370A3A	1.00	16.57	1.27	16.57
#FFFFFF	16.57	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#011B3B

Deuteranopia (green-blind)

#142039

Tritanopia (blue-blind)

#381221

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #370a3a;
/* rgb */ color: rgb(55, 10, 58);
/* oklch */ color: oklch(25.0% 0.096 325.3);

Tailwind

colors: {
  custom: {
    50: '#704e70',
    500: '#370a3a',
    950: '#000000',
  },
}

SCSS

$custom: #370a3a;
$custom-light: #704e70;
$custom-dark: #000000;

JSON

{
  "hex": "#370a3a",
  "rgb": {
    "r": 55,
    "g": 10,
    "b": 58
  },
  "hsl": {
    "h": 296.25,
    "s": 70.588,
    "l": 13.333
  },
  "oklch": {
    "l": 0.24986,
    "c": 0.09644,
    "h": 325.3
  },
  "luminance": 0.01335
}

Semantic roles & 50–950 ramp

primary

#370A3A

secondary

#2D7728

accent

#ED3A46

background

#F6F4F6

surface

#ECE7EC

border

#C7C3C7

text

#080207

muted

#7B787A

Preview Lab

Preview with #370A3A

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

Preview Lab → · Contrast checker → · Palette generator →