#370D57#370D57

#370D57 is a dark, vivid violet. Relative luminance 0.018; OKLCH L 27.7% C 0.123 H 305.1°. Best body text is #FFFFFF at 15.47:1 contrast (WCAG AA passes).

Color values

HEX	#370D57
RGB	rgb(55, 13, 87)
HSL	hsl(274, 74%, 20%)
HSV	hsv(274, 85%, 34%)
CMYK	cmyk(36.8%, 85.1%, 0%, 65.9%)
CIE-LAB	lab(14.33, 34.63, -35.39)
CIE-LCH	lch(14.33, 49.52, 314.37°)
OKLab	oklab(27.73% 0.0709 -0.1008)
OKLCH	oklch(27.73% 0.123 305.1)
XYZ	xyz(3.4394, 1.7882, 9.1789)
Luminance	0.0179 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 4.64

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370D57 #2D570D

analogous

#120D57 #370D57 #570D52

triadic

#370D57 #57370D #0D5737

tetradic

#370D57 #57120D #2D570D #0D5257

square

#370D57 #57120D #2D570D #0D5257

split-complementary

#370D57 #52570D #0D5712

monochromatic

#11041B #150522 #370D57 #59158C #7A1DC1

Accessibility & contrast

On white

15.47

#370D57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#370D57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370D57

15.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370D57	#FFFFFF	#000000	##FFFFFF
##370D57	1.00	15.47	1.36	15.47
#FFFFFF	15.47	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.47	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: #370d57;
/* rgb */ color: rgb(55, 13, 87);
/* oklch */ color: oklch(27.7% 0.123 305.1);

Tailwind

colors: {
  custom: {
    50: '#725187',
    500: '#370d57',
    950: '#000000',
  },
}

SCSS

$custom: #370d57;
$custom-light: #725187;
$custom-dark: #000000;

JSON

{
  "hex": "#370d57",
  "rgb": {
    "r": 55,
    "g": 13,
    "b": 87
  },
  "hsl": {
    "h": 274.054,
    "s": 74,
    "l": 19.608
  },
  "oklch": {
    "l": 0.27725,
    "c": 0.12329,
    "h": 305.1
  },
  "luminance": 0.01788
}

Semantic roles & 50–950 ramp

primary

#370D57

secondary

#59922E

accent

#F13787

background

#F7F4F8

surface

#EDE7EF

border

#C8C3CA

text

#08020B

muted

#7B787C

Preview Lab

Preview with #370D57

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

Preview Lab → · Contrast checker → · Palette generator →