#331788#331788

#331788 is a dark, vivid violet. Relative luminance 0.031; OKLCH L 33.4% C 0.170 H 283.6°. Best body text is #FFFFFF at 12.97:1 contrast (WCAG AA passes).

Color values

HEX	#331788
RGB	rgb(51, 23, 136)
HSL	hsl(255, 71%, 31%)
HSV	hsv(255, 83%, 53%)
CMYK	cmyk(62.5%, 83.1%, 0%, 46.7%)
CIE-LAB	lab(20.42, 43.38, -57.29)
CIE-LCH	lch(20.42, 71.86, 307.13°)
OKLab	oklab(33.36% 0.04 -0.1652)
OKLCH	oklch(33.36% 0.17 283.6)
XYZ	xyz(6.1142, 3.0938, 23.5627)
Luminance	0.0309 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331788 #6C8817

analogous

#173388 #331788 #6B1788

triadic

#331788 #883317 #178833

tetradic

#331788 #881733 #6C8817 #17886B

square

#331788 #881733 #6C8817 #17886B

split-complementary

#331788 #886B17 #338817

monochromatic

#0C051F #1F0E54 #331788 #4720BC #643BDE

Accessibility & contrast

On white

12.97

#331788 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#331788 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331788

12.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331788	#FFFFFF	#000000	##FFFFFF
##331788	1.00	12.97	1.62	12.97
#FFFFFF	12.97	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348B

Deuteranopia (green-blind)

#002D86

Tritanopia (blue-blind)

#003A50

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #331788;
/* rgb */ color: rgb(51, 23, 136);
/* oklch */ color: oklch(33.4% 0.170 283.6);

Tailwind

colors: {
  custom: {
    50: '#7759ac',
    500: '#331788',
    950: '#000000',
  },
}

SCSS

$custom: #331788;
$custom-light: #7759ac;
$custom-dark: #000000;

JSON

{
  "hex": "#331788",
  "rgb": {
    "r": 51,
    "g": 23,
    "b": 136
  },
  "hsl": {
    "h": 254.867,
    "s": 71.069,
    "l": 31.176
  },
  "oklch": {
    "l": 0.33363,
    "c": 0.16995,
    "h": 283.6
  },
  "luminance": 0.03094
}

Semantic roles & 50–950 ramp

primary

#331788

secondary

#9DBC3F

accent

#EE3AC1

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A0410

muted

#7C797F

Preview Lab

Preview with #331788

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

Preview Lab → · Contrast checker → · Palette generator →