#331581#331581

#331581 is a dark, vivid violet. Relative luminance 0.028; OKLCH L 32.4% C 0.163 H 285.5°. Best body text is #FFFFFF at 13.42:1 contrast (WCAG AA passes).

Color values

HEX	#331581
RGB	rgb(51, 21, 129)
HSL	hsl(257, 72%, 29%)
HSV	hsv(257, 84%, 51%)
CMYK	cmyk(60.5%, 83.7%, 0%, 49.4%)
CIE-LAB	lab(19.33, 42.22, -54.67)
CIE-LCH	lch(19.33, 69.08, 307.68°)
OKLab	oklab(32.38% 0.0436 -0.1575)
OKLCH	oklch(32.38% 0.163 285.5)
XYZ	xyz(5.5947, 2.8248, 21.0151)
Luminance	0.0283 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331581 #638115

analogous

#152D81 #331581 #691581

triadic

#331581 #813315 #158133

tetradic

#331581 #81152D #638115 #158169

square

#331581 #81152D #638115 #158169

split-complementary

#331581 #816915 #2D8115

monochromatic

#0A041A #1E0C4C #331581 #481EB6 #6233DE

Accessibility & contrast

On white

13.42

#331581 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#331581 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331581

13.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331581	#FFFFFF	#000000	##FFFFFF
##331581	1.00	13.42	1.57	13.42
#FFFFFF	13.42	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003284

Deuteranopia (green-blind)

#002C7F

Tritanopia (blue-blind)

#06364C

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #331581;
/* rgb */ color: rgb(51, 21, 129);
/* oklch */ color: oklch(32.4% 0.163 285.5);

Tailwind

colors: {
  custom: {
    50: '#7658a7',
    500: '#331581',
    950: '#000000',
  },
}

SCSS

$custom: #331581;
$custom-light: #7658a7;
$custom-dark: #000000;

JSON

{
  "hex": "#331581",
  "rgb": {
    "r": 51,
    "g": 21,
    "b": 129
  },
  "hsl": {
    "h": 256.667,
    "s": 72,
    "l": 29.412
  },
  "oklch": {
    "l": 0.32381,
    "c": 0.16345,
    "h": 285.5
  },
  "luminance": 0.02825
}

Semantic roles & 50–950 ramp

primary

#331581

secondary

#94B63C

accent

#EF39BC

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #331581

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

Preview Lab → · Contrast checker → · Palette generator →