#331C66#331C66

#331C66 is a dark, vivid violet. Relative luminance 0.025; OKLCH L 30.5% C 0.122 H 291.8°. Best body text is #FFFFFF at 14.01:1 contrast (WCAG AA passes).

Color values

HEX	#331C66
RGB	rgb(51, 28, 102)
HSL	hsl(259, 57%, 25%)
HSV	hsv(259, 73%, 40%)
CMYK	cmyk(50%, 72.5%, 0%, 60%)
CIE-LAB	lab(17.89, 30.39, -39.62)
CIE-LCH	lch(17.89, 49.93, 307.49°)
OKLab	oklab(30.54% 0.0454 -0.1135)
OKLCH	oklch(30.54% 0.122 291.8)
XYZ	xyz(4.1781, 2.4935, 12.8289)
Luminance	0.0249 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331C66 #4F661C

analogous

#1C2A66 #331C66 #581C66

triadic

#331C66 #66331C #1C6633

tetradic

#331C66 #661C2A #4F661C #1C6658

square

#331C66 #661C2A #4F661C #1C6658

split-complementary

#331C66 #66581C #2A661C

monochromatic

#0C0718 #1B0F36 #331C66 #4B2996 #6336C6

Accessibility & contrast

On white

14.01

#331C66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#331C66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331C66

14.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331C66	#FFFFFF	#000000	##FFFFFF
##331C66	1.00	14.01	1.50	14.01
#FFFFFF	14.01	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D68

Deuteranopia (green-blind)

#002A65

Tritanopia (blue-blind)

#232E3E

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #331c66;
/* rgb */ color: rgb(51, 28, 102);
/* oklch */ color: oklch(30.5% 0.122 291.8);

Tailwind

colors: {
  custom: {
    50: '#705a92',
    500: '#331c66',
    950: '#000000',
  },
}

SCSS

$custom: #331c66;
$custom-light: #705a92;
$custom-dark: #000000;

JSON

{
  "hex": "#331c66",
  "rgb": {
    "r": 51,
    "g": 28,
    "b": 102
  },
  "hsl": {
    "h": 258.649,
    "s": 56.923,
    "l": 25.49
  },
  "oklch": {
    "l": 0.30544,
    "c": 0.12224,
    "h": 291.8
  },
  "luminance": 0.02494
}

Semantic roles & 50–950 ramp

primary

#331C66

secondary

#809B43

accent

#E048B1

background

#F7F5F9

surface

#EDE9F1

border

#C8C5CB

text

#08040D

muted

#7B797E

Preview Lab

Preview with #331C66

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

Preview Lab → · Contrast checker → · Palette generator →