#331C68#331C68

#331C68 is a dark, vivid violet. Relative luminance 0.025; OKLCH L 30.7% C 0.125 H 291.1°. Best body text is #FFFFFF at 13.94:1 contrast (WCAG AA passes).

Color values

HEX	#331C68
RGB	rgb(51, 28, 104)
HSL	hsl(258, 58%, 26%)
HSV	hsv(258, 73%, 41%)
CMYK	cmyk(51%, 73.1%, 0%, 59.2%)
CIE-LAB	lab(18.07, 31.01, -40.64)
CIE-LCH	lch(18.07, 51.12, 307.35°)
OKLab	oklab(30.73% 0.045 -0.1165)
OKLCH	oklch(30.73% 0.125 291.1)
XYZ	xyz(4.2785, 2.5336, 13.3576)
Luminance	0.0253 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331C68 #51681C

analogous

#1C2B68 #331C68 #591C68

triadic

#331C68 #68331C #1C6833

tetradic

#331C68 #681C2B #51681C #1C6859

square

#331C68 #681C2B #51681C #1C6859

split-complementary

#331C68 #68591C #2B681C

monochromatic

#0C0618 #1B0F38 #331C68 #4B2998 #6236C8

Accessibility & contrast

On white

13.94

#331C68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#331C68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331C68

13.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331C68	#FFFFFF	#000000	##FFFFFF
##331C68	1.00	13.94	1.51	13.94
#FFFFFF	13.94	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D6A

Deuteranopia (green-blind)

#002A66

Tritanopia (blue-blind)

#222F3F

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #331c68;
/* rgb */ color: rgb(51, 28, 104);
/* oklch */ color: oklch(30.7% 0.125 291.1);

Tailwind

colors: {
  custom: {
    50: '#705a94',
    500: '#331c68',
    950: '#000000',
  },
}

SCSS

$custom: #331c68;
$custom-light: #705a94;
$custom-dark: #000000;

JSON

{
  "hex": "#331c68",
  "rgb": {
    "r": 51,
    "g": 28,
    "b": 104
  },
  "hsl": {
    "h": 258.158,
    "s": 57.576,
    "l": 25.882
  },
  "oklch": {
    "l": 0.3073,
    "c": 0.12488,
    "h": 291.1
  },
  "luminance": 0.02534
}

Semantic roles & 50–950 ramp

primary

#331C68

secondary

#829D43

accent

#E147B2

background

#F7F5F9

surface

#EDE9F1

border

#C8C5CB

text

#08040D

muted

#7B797E

Preview Lab

Preview with #331C68

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

Preview Lab → · Contrast checker → · Palette generator →