#331F8A#331F8A

#331F8A is a dark, vivid violet. Relative luminance 0.035; OKLCH L 34.5% C 0.165 H 282.0°. Best body text is #FFFFFF at 12.33:1 contrast (WCAG AA passes).

Color values

HEX	#331F8A
RGB	rgb(51, 31, 138)
HSL	hsl(251, 63%, 33%)
HSV	hsv(251, 78%, 54%)
CMYK	cmyk(63%, 77.5%, 0%, 45.9%)
CIE-LAB	lab(22.01, 40.01, -55.91)
CIE-LCH	lch(22.01, 68.75, 305.59°)
OKLab	oklab(34.54% 0.0343 -0.1612)
OKLCH	oklch(34.54% 0.165 282)
XYZ	xyz(6.4412, 3.5183, 24.3795)
Luminance	0.0352 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331F8A #768A1F

analogous

#1F408A #331F8A #681F8A

triadic

#331F8A #8A331F #1F8A33

tetradic

#331F8A #8A1F40 #768A1F #1F8A68

square

#331F8A #8A1F40 #768A1F #1F8A68

split-complementary

#331F8A #8A681F #408A1F

monochromatic

#0E0926 #211458 #331F8A #452ABC #664CD7

Accessibility & contrast

On white

12.33

#331F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#331F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331F8A

12.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331F8A	#FFFFFF	#000000	##FFFFFF
##331F8A	1.00	12.33	1.70	12.33
#FFFFFF	12.33	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00388D

Deuteranopia (green-blind)

#003188

Tritanopia (blue-blind)

#003E53

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #331f8a;
/* rgb */ color: rgb(51, 31, 138);
/* oklch */ color: oklch(34.5% 0.165 282.0);

Tailwind

colors: {
  custom: {
    50: '#775ead',
    500: '#331f8a',
    950: '#000000',
  },
}

SCSS

$custom: #331f8a;
$custom-light: #775ead;
$custom-dark: #000000;

JSON

{
  "hex": "#331f8a",
  "rgb": {
    "r": 51,
    "g": 31,
    "b": 138
  },
  "hsl": {
    "h": 251.215,
    "s": 63.314,
    "l": 33.137
  },
  "oklch": {
    "l": 0.34539,
    "c": 0.16486,
    "h": 282
  },
  "luminance": 0.03519
}

Semantic roles & 50–950 ramp

primary

#331F8A

secondary

#A5BA4B

accent

#E641C8

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A0410

muted

#7C797F

Preview Lab

Preview with #331F8A

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

Preview Lab → · Contrast checker → · Palette generator →