#331D68#331D68

#331D68 is a dark, vivid violet. Relative luminance 0.026; OKLCH L 30.9% C 0.124 H 290.8°. Best body text is #FFFFFF at 13.85:1 contrast (WCAG AA passes).

Color values

HEX	#331D68
RGB	rgb(51, 29, 104)
HSL	hsl(258, 56%, 26%)
HSV	hsv(258, 72%, 41%)
CMYK	cmyk(51%, 72.1%, 0%, 59.2%)
CIE-LAB	lab(18.28, 30.42, -40.29)
CIE-LCH	lch(18.28, 50.48, 307.06°)
OKLab	oklab(30.88% 0.0439 -0.1155)
OKLCH	oklch(30.88% 0.124 290.8)
XYZ	xyz(4.3026, 2.5818, 13.3657)
Luminance	0.0258 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331D68 #52681D

analogous

#1D2C68 #331D68 #581D68

triadic

#331D68 #68331D #1D6833

tetradic

#331D68 #681D2C #52681D #1D6858

square

#331D68 #681D2C #52681D #1D6858

split-complementary

#331D68 #68581D #2C681D

monochromatic

#0C0718 #1C1038 #331D68 #4A2A98 #6238C7

Accessibility & contrast

On white

13.85

#331D68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#331D68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331D68

13.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331D68	#FFFFFF	#000000	##FFFFFF
##331D68	1.00	13.85	1.52	13.85
#FFFFFF	13.85	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E6A

Deuteranopia (green-blind)

#002B67

Tritanopia (blue-blind)

#223040

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #331d68;
/* rgb */ color: rgb(51, 29, 104);
/* oklch */ color: oklch(30.9% 0.124 290.8);

Tailwind

colors: {
  custom: {
    50: '#705b94',
    500: '#331d68',
    950: '#000000',
  },
}

SCSS

$custom: #331d68;
$custom-light: #705b94;
$custom-dark: #000000;

JSON

{
  "hex": "#331d68",
  "rgb": {
    "r": 51,
    "g": 29,
    "b": 104
  },
  "hsl": {
    "h": 257.6,
    "s": 56.391,
    "l": 26.078
  },
  "oklch": {
    "l": 0.30883,
    "c": 0.12354,
    "h": 290.8
  },
  "luminance": 0.02582
}

Semantic roles & 50–950 ramp

primary

#331D68

secondary

#839D44

accent

#E048B3

background

#F7F5F9

surface

#EDE9F1

border

#C8C5CB

text

#08040D

muted

#7B797E

Preview Lab

Preview with #331D68

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

Preview Lab → · Contrast checker → · Palette generator →