#370D58#370D58

#370D58 is a dark, vivid violet. Relative luminance 0.018; OKLCH L 27.8% C 0.124 H 304.6°. Best body text is #FFFFFF at 15.43:1 contrast (WCAG AA passes).

Color values

HEX	#370D58
RGB	rgb(55, 13, 88)
HSL	hsl(274, 74%, 20%)
HSV	hsv(274, 85%, 35%)
CMYK	cmyk(37.5%, 85.2%, 0%, 65.5%)
CIE-LAB	lab(14.43, 34.89, -35.92)
CIE-LCH	lch(14.43, 50.07, 314.16°)
OKLab	oklab(27.82% 0.0706 -0.1024)
OKLCH	oklch(27.82% 0.124 304.6)
XYZ	xyz(3.4805, 1.8047, 9.3956)
Luminance	0.0181 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 4.57

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370D58 #2E580D

analogous

#120D58 #370D58 #580D54

triadic

#370D58 #58370D #0D5837

tetradic

#370D58 #58120D #2E580D #0D5458

square

#370D58 #58120D #2E580D #0D5458

split-complementary

#370D58 #54580D #0D5812

monochromatic

#11041B #160523 #370D58 #58158D #7A1DC3

Accessibility & contrast

On white

15.43

#370D58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#370D58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370D58

15.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370D58	#FFFFFF	#000000	##FFFFFF
##370D58	1.00	15.43	1.36	15.43
#FFFFFF	15.43	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00235A

Deuteranopia (green-blind)

#002457

Tritanopia (blue-blind)

#312133

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #370d58;
/* rgb */ color: rgb(55, 13, 88);
/* oklch */ color: oklch(27.8% 0.124 304.6);

Tailwind

colors: {
  custom: {
    50: '#725288',
    500: '#370d58',
    950: '#000000',
  },
}

SCSS

$custom: #370d58;
$custom-light: #725288;
$custom-dark: #000000;

JSON

{
  "hex": "#370d58",
  "rgb": {
    "r": 55,
    "g": 13,
    "b": 88
  },
  "hsl": {
    "h": 273.6,
    "s": 74.257,
    "l": 19.804
  },
  "oklch": {
    "l": 0.27819,
    "c": 0.12439,
    "h": 304.6
  },
  "luminance": 0.01805
}

Semantic roles & 50–950 ramp

primary

#370D58

secondary

#5A932E

accent

#F13789

background

#F7F4F8

surface

#EDE7F0

border

#C8C3CB

text

#08020B

muted

#7B787C

Preview Lab

Preview with #370D58

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

Preview Lab → · Contrast checker → · Palette generator →