#370F5D#370F5D

#370F5D is a dark, vivid violet. Relative luminance 0.019; OKLCH L 28.5% C 0.128 H 301.8°. Best body text is #FFFFFF at 15.12:1 contrast (WCAG AA passes).

Color values

HEX	#370F5D
RGB	rgb(55, 15, 93)
HSL	hsl(271, 72%, 21%)
HSV	hsv(271, 84%, 36%)
CMYK	cmyk(40.9%, 83.9%, 0%, 63.5%)
CIE-LAB	lab(15.19, 35.34, -38.03)
CIE-LCH	lch(15.19, 51.92, 312.90°)
OKLab	oklab(28.5% 0.0673 -0.1086)
OKLCH	oklch(28.5% 0.128 301.8)
XYZ	xyz(3.7217, 1.9442, 10.5330)
Luminance	0.0194 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 4.37

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370F5D #355D0F

analogous

#100F5D #370F5D #5D0F5C

triadic

#370F5D #5D370F #0F5D37

tetradic

#370F5D #5D100F #355D0F #0F5C5D

square

#370F5D #5D100F #355D0F #0F5C5D

split-complementary

#370F5D #5C5D0F #0F5D10

monochromatic

#10041A #180628 #370F5D #561792 #7520C6

Accessibility & contrast

On white

15.12

#370F5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#370F5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370F5D

15.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370F5D	#FFFFFF	#000000	##FFFFFF
##370F5D	1.00	15.12	1.39	15.12
#FFFFFF	15.12	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00265F

Deuteranopia (green-blind)

#00265B

Tritanopia (blue-blind)

#2F2436

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #370f5d;
/* rgb */ color: rgb(55, 15, 93);
/* oklch */ color: oklch(28.5% 0.128 301.8);

Tailwind

colors: {
  custom: {
    50: '#72538c',
    500: '#370f5d',
    950: '#000000',
  },
}

SCSS

$custom: #370f5d;
$custom-light: #72538c;
$custom-dark: #000000;

JSON

{
  "hex": "#370f5d",
  "rgb": {
    "r": 55,
    "g": 15,
    "b": 93
  },
  "hsl": {
    "h": 270.769,
    "s": 72.222,
    "l": 21.176
  },
  "oklch": {
    "l": 0.28498,
    "c": 0.12777,
    "h": 301.8
  },
  "luminance": 0.01944
}

Semantic roles & 50–950 ramp

primary

#370F5D

secondary

#639631

accent

#EF3992

background

#F7F4F8

surface

#EDE7F0

border

#C8C3CB

text

#08030C

muted

#7B787D

Preview Lab

Preview with #370F5D

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

Preview Lab → · Contrast checker → · Palette generator →