#371CA9#371CA9

#371CA9 is a dark, highly saturated violet. Relative luminance 0.045; OKLCH L 37.9% C 0.203 H 279.2°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#371CA9
RGB	rgb(55, 28, 169)
HSL	hsl(251, 72%, 39%)
HSV	hsv(251, 83%, 66%)
CMYK	cmyk(67.5%, 83.4%, 0%, 33.7%)
CIE-LAB	lab(25.28, 51.22, -69.54)
CIE-LCH	lch(25.28, 86.37, 306.38°)
OKLab	oklab(37.91% 0.0326 -0.2008)
OKLCH	oklch(37.91% 0.203 279.2)
XYZ	xyz(9.1499, 4.5065, 37.9161)
Luminance	0.0451 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371CA9 #8EA91C

analogous

#1C47A9 #371CA9 #7D1CA9

triadic

#371CA9 #A9371C #1CA937

tetradic

#371CA9 #A91C47 #8EA91C #1CA97D

square

#371CA9 #A91C47 #8EA91C #1CA97D

split-complementary

#371CA9 #A97D1C #47A91C

monochromatic

#150B40 #261374 #371CA9 #4927DB #765BE4

Accessibility & contrast

On white

11.04

#371CA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#371CA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371CA9

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371CA9	#FFFFFF	#000000	##FFFFFF
##371CA9	1.00	11.04	1.90	11.04
#FFFFFF	11.04	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041AD

Deuteranopia (green-blind)

#0036A7

Tritanopia (blue-blind)

#004965

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #371ca9;
/* rgb */ color: rgb(55, 28, 169);
/* oklch */ color: oklch(37.9% 0.203 279.2);

Tailwind

colors: {
  custom: {
    50: '#7f5ec4',
    500: '#371ca9',
    950: '#000000',
  },
}

SCSS

$custom: #371ca9;
$custom-light: #7f5ec4;
$custom-dark: #000000;

JSON

{
  "hex": "#371ca9",
  "rgb": {
    "r": 55,
    "g": 28,
    "b": 169
  },
  "hsl": {
    "h": 251.489,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.37907,
    "c": 0.20341,
    "h": 279.2
  },
  "luminance": 0.04507
}

Semantic roles & 50–950 ramp

primary

#371CA9

secondary

#B3C859

accent

#EE39CC

background

#F8F5FC

surface

#F0E9F8

border

#CBC5D1

text

#0C0513

muted

#7D7982

Preview Lab

Preview with #371CA9

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

Preview Lab → · Contrast checker → · Palette generator →