#331578#331578

#331578 is a dark, vivid violet. Relative luminance 0.026; OKLCH L 31.4% C 0.153 H 287.8°. Best body text is #FFFFFF at 13.82:1 contrast (WCAG AA passes).

Color values

HEX	#331578
RGB	rgb(51, 21, 120)
HSL	hsl(258, 70%, 28%)
HSV	hsv(258, 83%, 47%)
CMYK	cmyk(57.5%, 82.5%, 0%, 52.9%)
CIE-LAB	lab(18.35, 39.58, -50.55)
CIE-LCH	lch(18.35, 64.20, 308.06°)
OKLab	oklab(31.41% 0.0468 -0.1455)
OKLCH	oklch(31.41% 0.153 287.8)
XYZ	xyz(5.0226, 2.5959, 18.0021)
Luminance	0.0260 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331578 #5A7815

analogous

#152878 #331578 #651578

triadic

#331578 #783315 #157833

tetradic

#331578 #781528 #5A7815 #157865

square

#331578 #781528 #5A7815 #157865

split-complementary

#331578 #786515 #287815

monochromatic

#0B051A #1D0C44 #331578 #491EAC #622DDA

Accessibility & contrast

On white

13.82

#331578 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#331578 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331578

13.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331578	#FFFFFF	#000000	##FFFFFF
##331578	1.00	13.82	1.52	13.82
#FFFFFF	13.82	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7B

Deuteranopia (green-blind)

#002A76

Tritanopia (blue-blind)

#153247

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #331578;
/* rgb */ color: rgb(51, 21, 120);
/* oklch */ color: oklch(31.4% 0.153 287.8);

Tailwind

colors: {
  custom: {
    50: '#7457a0',
    500: '#331578',
    950: '#000000',
  },
}

SCSS

$custom: #331578;
$custom-light: #7457a0;
$custom-dark: #000000;

JSON

{
  "hex": "#331578",
  "rgb": {
    "r": 51,
    "g": 21,
    "b": 120
  },
  "hsl": {
    "h": 258.182,
    "s": 70.213,
    "l": 27.647
  },
  "oklch": {
    "l": 0.31409,
    "c": 0.15282,
    "h": 287.8
  },
  "luminance": 0.02596
}

Semantic roles & 50–950 ramp

primary

#331578

secondary

#8BAE3B

accent

#ED3BB7

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#09030F

muted

#7B787F

Preview Lab

Preview with #331578

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

Preview Lab → · Contrast checker → · Palette generator →