#370F58#370F58

#370F58 is a dark, vivid violet. Relative luminance 0.019; OKLCH L 28.0% C 0.122 H 304.3°. Best body text is #FFFFFF at 15.31:1 contrast (WCAG AA passes).

Color values

HEX	#370F58
RGB	rgb(55, 15, 88)
HSL	hsl(273, 71%, 20%)
HSV	hsv(273, 83%, 35%)
CMYK	cmyk(37.5%, 83%, 0%, 65.5%)
CIE-LAB	lab(14.73, 34.02, -35.43)
CIE-LCH	lch(14.73, 49.12, 313.84°)
OKLab	oklab(28.03% 0.0688 -0.101)
OKLCH	oklch(28.03% 0.122 304.3)
XYZ	xyz(3.5074, 1.8585, 9.4046)
Luminance	0.0186 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 4.61

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370F58 #30580F

analogous

#130F58 #370F58 #580F54

triadic

#370F58 #58370F #0F5837

tetradic

#370F58 #58130F #30580F #0F5458

square

#370F58 #58130F #30580F #0F5458

split-complementary

#370F58 #54580F #0F5813

monochromatic

#10041A #160624 #370F58 #58188C #7821C1

Accessibility & contrast

On white

15.31

#370F58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#370F58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370F58

15.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370F58	#FFFFFF	#000000	##FFFFFF
##370F58	1.00	15.31	1.37	15.31
#FFFFFF	15.31	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00245A

Deuteranopia (green-blind)

#002557

Tritanopia (blue-blind)

#312233

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #370f58;
/* rgb */ color: rgb(55, 15, 88);
/* oklch */ color: oklch(28.0% 0.122 304.3);

Tailwind

colors: {
  custom: {
    50: '#725288',
    500: '#370f58',
    950: '#000000',
  },
}

SCSS

$custom: #370f58;
$custom-light: #725288;
$custom-dark: #000000;

JSON

{
  "hex": "#370f58",
  "rgb": {
    "r": 55,
    "g": 15,
    "b": 88
  },
  "hsl": {
    "h": 272.877,
    "s": 70.874,
    "l": 20.196
  },
  "oklch": {
    "l": 0.28028,
    "c": 0.12216,
    "h": 304.3
  },
  "luminance": 0.01858
}

Semantic roles & 50–950 ramp

primary

#370F58

secondary

#5D9231

accent

#EE3A8B

background

#F7F4F8

surface

#EDE7F0

border

#C8C3CB

text

#08020B

muted

#7B787C

Preview Lab

Preview with #370F58

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

Preview Lab → · Contrast checker → · Palette generator →