#371F99#371F99

#371F99 is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.5% C 0.182 H 281.4°. Best body text is #FFFFFF at 11.55:1 contrast (WCAG AA passes).

Color values

HEX	#371F99
RGB	rgb(55, 31, 153)
HSL	hsl(252, 66%, 36%)
HSV	hsv(252, 80%, 60%)
CMYK	cmyk(64.1%, 79.7%, 0%, 40%)
CIE-LAB	lab(23.97, 45.11, -61.96)
CIE-LCH	lch(23.97, 76.64, 306.06°)
OKLab	oklab(36.48% 0.0362 -0.1788)
OKLCH	oklch(36.48% 0.182 281.4)
XYZ	xyz(7.8135, 4.0915, 30.5088)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371F99 #81991F

analogous

#1F4499 #371F99 #741F99

triadic

#371F99 #99371F #1F9937

tetradic

#371F99 #991F44 #81991F #1F9974

square

#371F99 #991F44 #81991F #1F9974

split-complementary

#371F99 #99741F #44991F

monochromatic

#120A33 #251566 #371F99 #4929CC #7056DD

Accessibility & contrast

On white

11.55

#371F99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#371F99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371F99

11.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371F99	#FFFFFF	#000000	##FFFFFF
##371F99	1.00	11.55	1.82	11.55
#FFFFFF	11.55	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D9C

Deuteranopia (green-blind)

#003597

Tritanopia (blue-blind)

#00435C

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #371f99;
/* rgb */ color: rgb(55, 31, 153);
/* oklch */ color: oklch(36.5% 0.182 281.4);

Tailwind

colors: {
  custom: {
    50: '#7b5fb8',
    500: '#371f99',
    950: '#000000',
  },
}

SCSS

$custom: #371f99;
$custom-light: #7b5fb8;
$custom-dark: #000000;

JSON

{
  "hex": "#371f99",
  "rgb": {
    "r": 55,
    "g": 31,
    "b": 153
  },
  "hsl": {
    "h": 251.803,
    "s": 66.304,
    "l": 36.078
  },
  "oklch": {
    "l": 0.36477,
    "c": 0.18239,
    "h": 281.4
  },
  "luminance": 0.04092
}

Semantic roles & 50–950 ramp

primary

#371F99

secondary

#ABC054

accent

#E93FC8

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #371F99

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

Preview Lab → · Contrast checker → · Palette generator →