#331B56#331B56

#331B56 is a dark, moderate violet. Relative luminance 0.022; OKLCH L 29.0% C 0.102 H 298.5°. Best body text is #FFFFFF at 14.66:1 contrast (WCAG AA passes).

Color values

HEX	#331B56
RGB	rgb(51, 27, 86)
HSL	hsl(264, 52%, 22%)
HSV	hsv(264, 69%, 34%)
CMYK	cmyk(40.7%, 68.6%, 0%, 66.3%)
CIE-LAB	lab(16.30, 26.10, -31.55)
CIE-LCH	lch(16.30, 40.94, 309.60°)
OKLab	oklab(28.97% 0.0488 -0.0898)
OKLCH	oklch(28.97% 0.102 298.5)
XYZ	xyz(3.4365, 2.1595, 9.0381)
Luminance	0.0216 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B56 #3E561B

analogous

#1B2156 #331B56 #511B56

triadic

#331B56 #56331B #1B5633

tetradic

#331B56 #561B21 #3E561B #1B5651

square

#331B56 #561B21 #3E561B #1B5651

split-complementary

#331B56 #56511B #21561B

monochromatic

#0E0717 #170C27 #331B56 #4F2A85 #6A38B3

Accessibility & contrast

On white

14.66

#331B56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#331B56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B56

14.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B56	#FFFFFF	#000000	##FFFFFF
##331B56	1.00	14.66	1.43	14.66
#FFFFFF	14.66	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002858

Deuteranopia (green-blind)

#012855

Tritanopia (blue-blind)

#2B2835

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #331b56;
/* rgb */ color: rgb(51, 27, 86);
/* oklch */ color: oklch(29.0% 0.102 298.5);

Tailwind

colors: {
  custom: {
    50: '#6e5986',
    500: '#331b56',
    950: '#000000',
  },
}

SCSS

$custom: #331b56;
$custom-light: #6e5986;
$custom-dark: #000000;

JSON

{
  "hex": "#331b56",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 86
  },
  "hsl": {
    "h": 264.407,
    "s": 52.212,
    "l": 22.157
  },
  "oklch": {
    "l": 0.28974,
    "c": 0.10218,
    "h": 298.5
  },
  "luminance": 0.0216
}

Semantic roles & 50–950 ramp

primary

#331B56

secondary

#6D8C41

accent

#DC4CA1

background

#F6F5F8

surface

#ECE9EF

border

#C7C5CA

text

#07030B

muted

#7A787C

Preview Lab

Preview with #331B56

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

Preview Lab → · Contrast checker → · Palette generator →