#370D4B#370D4B

#370D4B is a dark, moderate purple. Relative luminance 0.016; OKLCH L 26.7% C 0.110 H 312.1°. Best body text is #FFFFFF at 15.89:1 contrast (WCAG AA passes).

Color values

HEX	#370D4B
RGB	rgb(55, 13, 75)
HSL	hsl(281, 70%, 17%)
HSV	hsv(281, 83%, 29%)
CMYK	cmyk(26.7%, 82.7%, 0%, 70.6%)
CIE-LAB	lab(13.28, 31.62, -28.90)
CIE-LCH	lch(13.28, 42.84, 317.57°)
OKLab	oklab(26.65% 0.0739 -0.0817)
OKLCH	oklch(26.65% 0.11 312.1)
XYZ	xyz(2.9892, 1.6082, 6.8082)
Luminance	0.0161 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370D4B #214B0D

analogous

#180D4B #370D4B #4B0D40

triadic

#370D4B #4B370D #0D4B37

tetradic

#370D4B #4B180D #214B0D #0D404B

square

#370D4B #4B180D #214B0D #0D404B

split-complementary

#370D4B #404B0D #0D4B18

monochromatic

#13051A #13051A #370D4B #5D167F #841FB3

Accessibility & contrast

On white

15.89

#370D4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#370D4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370D4B

15.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370D4B	#FFFFFF	#000000	##FFFFFF
##370D4B	1.00	15.89	1.32	15.89
#FFFFFF	15.89	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00204D

Deuteranopia (green-blind)

#05234A

Tritanopia (blue-blind)

#351B2B

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #370d4b;
/* rgb */ color: rgb(55, 13, 75);
/* oklch */ color: oklch(26.7% 0.110 312.1);

Tailwind

colors: {
  custom: {
    50: '#71517e',
    500: '#370d4b',
    950: '#000000',
  },
}

SCSS

$custom: #370d4b;
$custom-light: #71517e;
$custom-dark: #000000;

JSON

{
  "hex": "#370d4b",
  "rgb": {
    "r": 55,
    "g": 13,
    "b": 75
  },
  "hsl": {
    "h": 280.645,
    "s": 70.455,
    "l": 17.255
  },
  "oklch": {
    "l": 0.26654,
    "c": 0.11019,
    "h": 312.1
  },
  "luminance": 0.01608
}

Semantic roles & 50–950 ramp

primary

#370D4B

secondary

#4A862E

accent

#ED3B74

background

#F7F4F7

surface

#EDE7EE

border

#C8C3C9

text

#08020A

muted

#7B787C

Preview Lab

Preview with #370D4B

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

Preview Lab → · Contrast checker → · Palette generator →