#5B31AB#5B31AB

#5B31AB is a dark, vivid violet. Relative luminance 0.074; OKLCH L 44.0% C 0.182 H 293.1°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#5B31AB
RGB	rgb(91, 49, 171)
HSL	hsl(261, 55%, 43%)
HSV	hsv(261, 71%, 67%)
CMYK	cmyk(46.8%, 71.3%, 0%, 32.9%)
CIE-LAB	lab(32.61, 46.49, -58.54)
CIE-LCH	lch(32.61, 74.75, 308.45°)
OKLab	oklab(43.96% 0.0717 -0.1677)
OKLCH	oklch(43.96% 0.182 293.1)
XYZ	xyz(12.7614, 7.3606, 39.2685)
Luminance	0.0736 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Rebeccapurple

#663399

ΔE00 4.04

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B31AB #81AB31

analogous

#3144AB #5B31AB #9831AB

triadic

#5B31AB #AB5B31 #31AB5B

tetradic

#5B31AB #AB3144 #81AB31 #31AB98

square

#5B31AB #AB3144 #81AB31 #31AB98

split-complementary

#5B31AB #AB9831 #44AB31

monochromatic

#28164C #42237B #5B31AB #794DCC #9D7DDA

Accessibility & contrast

On white

8.49

#5B31AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#5B31AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B31AB

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B31AB	#FFFFFF	#000000	##FFFFFF
##5B31AB	1.00	8.49	2.47	8.49
#FFFFFF	8.49	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAF

Deuteranopia (green-blind)

#004AA9

Tritanopia (blue-blind)

#43506A

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #5b31ab;
/* rgb */ color: rgb(91, 49, 171);
/* oklch */ color: oklch(44.0% 0.182 293.1);

Tailwind

colors: {
  custom: {
    50: '#916dc5',
    500: '#5b31ab',
    950: '#000000',
  },
}

SCSS

$custom: #5b31ab;
$custom-light: #916dc5;
$custom-dark: #000000;

JSON

{
  "hex": "#5b31ab",
  "rgb": {
    "r": 91,
    "g": 49,
    "b": 171
  },
  "hsl": {
    "h": 260.656,
    "s": 55.455,
    "l": 43.137
  },
  "oklch": {
    "l": 0.43964,
    "c": 0.18243,
    "h": 293.1
  },
  "luminance": 0.07361
}

Semantic roles & 50–950 ramp

primary

#5B31AB

secondary

#A8C275

accent

#DF49AB

background

#F9F6FC

surface

#F2ECF8

border

#CCC7D1

text

#0D0713

muted

#7E7A82

Preview Lab

Preview with #5B31AB

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

Preview Lab → · Contrast checker → · Palette generator →