#331C99#331C99

#331C99 is a dark, vivid violet. Relative luminance 0.038; OKLCH L 35.8% C 0.186 H 279.8°. Best body text is #FFFFFF at 11.89:1 contrast (WCAG AA passes).

Color values

HEX	#331C99
RGB	rgb(51, 28, 153)
HSL	hsl(251, 69%, 35%)
HSV	hsv(251, 82%, 60%)
CMYK	cmyk(66.7%, 81.7%, 0%, 40%)
CIE-LAB	lab(23.11, 46.14, -63.39)
CIE-LCH	lch(23.11, 78.40, 306.05°)
OKLab	oklab(35.79% 0.0317 -0.183)
OKLCH	oklch(35.79% 0.186 279.8)
XYZ	xyz(7.5284, 3.8336, 30.4740)
Luminance	0.0383 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331C99 #82991C

analogous

#1C4399 #331C99 #711C99

triadic

#331C99 #99331C #1C9933

tetradic

#331C99 #991C43 #82991C #1C9971

square

#331C99 #991C43 #82991C #1C9971

split-complementary

#331C99 #99711C #43991C

monochromatic

#110932 #221365 #331C99 #4425CD #6B50DF

Accessibility & contrast

On white

11.89

#331C99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#331C99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331C99

11.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331C99	#FFFFFF	#000000	##FFFFFF
##331C99	1.00	11.89	1.77	11.89
#FFFFFF	11.89	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9C

Deuteranopia (green-blind)

#003297

Tritanopia (blue-blind)

#00425B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #331c99;
/* rgb */ color: rgb(51, 28, 153);
/* oklch */ color: oklch(35.8% 0.186 279.8);

Tailwind

colors: {
  custom: {
    50: '#7a5db8',
    500: '#331c99',
    950: '#000000',
  },
}

SCSS

$custom: #331c99;
$custom-light: #7a5db8;
$custom-dark: #000000;

JSON

{
  "hex": "#331c99",
  "rgb": {
    "r": 51,
    "g": 28,
    "b": 153
  },
  "hsl": {
    "h": 251.04,
    "s": 69.061,
    "l": 35.49
  },
  "oklch": {
    "l": 0.35792,
    "c": 0.18573,
    "h": 279.8
  },
  "luminance": 0.03834
}

Semantic roles & 50–950 ramp

primary

#331C99

secondary

#ADC24F

accent

#EC3CCC

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0B0412

muted

#7C7981

Preview Lab

Preview with #331C99

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

Preview Lab → · Contrast checker → · Palette generator →