#370F59#370F59

#370F59 is a dark, vivid violet. Relative luminance 0.019; OKLCH L 28.1% C 0.123 H 303.7°. Best body text is #FFFFFF at 15.27:1 contrast (WCAG AA passes).

Color values

HEX	#370F59
RGB	rgb(55, 15, 89)
HSL	hsl(272, 71%, 20%)
HSV	hsv(272, 83%, 35%)
CMYK	cmyk(38.2%, 83.1%, 0%, 65.1%)
CIE-LAB	lab(14.82, 34.29, -35.96)
CIE-LCH	lch(14.82, 49.68, 313.64°)
OKLab	oklab(28.12% 0.0685 -0.1025)
OKLCH	oklch(28.12% 0.123 303.7)
XYZ	xyz(3.5491, 1.8751, 9.6242)
Luminance	0.0187 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 4.54

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370F59 #31590F

analogous

#120F59 #370F59 #590F56

triadic

#370F59 #59370F #0F5937

tetradic

#370F59 #59120F #31590F #0F5659

square

#370F59 #59120F #31590F #0F5659

split-complementary

#370F59 #56590F #0F5912

monochromatic

#10041A #170625 #370F59 #57188D #7821C2

Accessibility & contrast

On white

15.27

#370F59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#370F59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370F59

15.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370F59	#FFFFFF	#000000	##FFFFFF
##370F59	1.00	15.27	1.38	15.27
#FFFFFF	15.27	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00245B

Deuteranopia (green-blind)

#002558

Tritanopia (blue-blind)

#302234

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #370f59;
/* rgb */ color: rgb(55, 15, 89);
/* oklch */ color: oklch(28.1% 0.123 303.7);

Tailwind

colors: {
  custom: {
    50: '#725289',
    500: '#370f59',
    950: '#000000',
  },
}

SCSS

$custom: #370f59;
$custom-light: #725289;
$custom-dark: #000000;

JSON

{
  "hex": "#370f59",
  "rgb": {
    "r": 55,
    "g": 15,
    "b": 89
  },
  "hsl": {
    "h": 272.432,
    "s": 71.154,
    "l": 20.392
  },
  "oklch": {
    "l": 0.28121,
    "c": 0.12328,
    "h": 303.7
  },
  "luminance": 0.01875
}

Semantic roles & 50–950 ramp

primary

#370F59

secondary

#5E9331

accent

#EE3A8D

background

#F7F4F8

surface

#EDE7F0

border

#C8C3CB

text

#08020B

muted

#7B787C

Preview Lab

Preview with #370F59

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

Preview Lab → · Contrast checker → · Palette generator →