#370C57#370C57

#370C57 is a dark, vivid violet. Relative luminance 0.018; OKLCH L 27.6% C 0.124 H 305.3°. Best body text is #FFFFFF at 15.53:1 contrast (WCAG AA passes).

Color values

HEX	#370C57
RGB	rgb(55, 12, 87)
HSL	hsl(274, 76%, 19%)
HSV	hsv(274, 86%, 34%)
CMYK	cmyk(36.8%, 86.2%, 0%, 65.9%)
CIE-LAB	lab(14.19, 35.04, -35.63)
CIE-LCH	lch(14.19, 49.97, 314.52°)
OKLab	oklab(27.63% 0.0718 -0.1015)
OKLCH	oklch(27.63% 0.124 305.3)
XYZ	xyz(3.4269, 1.7633, 9.1748)
Luminance	0.0176 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 4.63

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370C57 #2C570C

analogous

#120C57 #370C57 #570C52

triadic

#370C57 #57370C #0C5737

tetradic

#370C57 #57120C #2C570C #0C5257

square

#370C57 #57120C #2C570C #0C5257

split-complementary

#370C57 #52570C #0C5712

monochromatic

#11041B #150521 #370C57 #59138D #7B1BC3

Accessibility & contrast

On white

15.53

#370C57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#370C57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370C57

15.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370C57	#FFFFFF	#000000	##FFFFFF
##370C57	1.00	15.53	1.35	15.53
#FFFFFF	15.53	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002359

Deuteranopia (green-blind)

#002456

Tritanopia (blue-blind)

#312032

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #370c57;
/* rgb */ color: rgb(55, 12, 87);
/* oklch */ color: oklch(27.6% 0.124 305.3);

Tailwind

colors: {
  custom: {
    50: '#725187',
    500: '#370c57',
    950: '#000000',
  },
}

SCSS

$custom: #370c57;
$custom-light: #725187;
$custom-dark: #000000;

JSON

{
  "hex": "#370c57",
  "rgb": {
    "r": 55,
    "g": 12,
    "b": 87
  },
  "hsl": {
    "h": 274.4,
    "s": 75.758,
    "l": 19.412
  },
  "oklch": {
    "l": 0.27626,
    "c": 0.12435,
    "h": 305.3
  },
  "luminance": 0.01763
}

Semantic roles & 50–950 ramp

primary

#370C57

secondary

#58922D

accent

#F23586

background

#F7F4F8

surface

#EDE7EF

border

#C8C3CA

text

#08020B

muted

#7B787C

Preview Lab

Preview with #370C57

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

Preview Lab → · Contrast checker → · Palette generator →