#331B59#331B59

#331B59 is a dark, moderate violet. Relative luminance 0.022; OKLCH L 29.2% C 0.106 H 297.1°. Best body text is #FFFFFF at 14.57:1 contrast (WCAG AA passes).

Color values

HEX	#331B59
RGB	rgb(51, 27, 89)
HSL	hsl(263, 53%, 23%)
HSV	hsv(263, 70%, 35%)
CMYK	cmyk(42.7%, 69.7%, 0%, 65.1%)
CIE-LAB	lab(16.55, 27.00, -33.17)
CIE-LCH	lch(16.55, 42.77, 309.14°)
OKLab	oklab(29.23% 0.0485 -0.0945)
OKLCH	oklch(29.23% 0.106 297.1)
XYZ	xyz(3.5599, 2.2089, 9.6881)
Luminance	0.0221 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B59 #41591B

analogous

#1B2259 #331B59 #521B59

triadic

#331B59 #59331B #1B5933

tetradic

#331B59 #591B22 #41591B #1B5952

square

#331B59 #591B22 #41591B #1B5952

split-complementary

#331B59 #59521B #22591B

monochromatic

#0D0717 #180D2A #331B59 #4E2988 #6937B7

Accessibility & contrast

On white

14.57

#331B59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#331B59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B59

14.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B59	#FFFFFF	#000000	##FFFFFF
##331B59	1.00	14.57	1.44	14.57
#FFFFFF	14.57	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00295B

Deuteranopia (green-blind)

#002858

Tritanopia (blue-blind)

#2A2937

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #331b59;
/* rgb */ color: rgb(51, 27, 89);
/* oklch */ color: oklch(29.2% 0.106 297.1);

Tailwind

colors: {
  custom: {
    50: '#6e5988',
    500: '#331b59',
    950: '#000000',
  },
}

SCSS

$custom: #331b59;
$custom-light: #6e5988;
$custom-dark: #000000;

JSON

{
  "hex": "#331b59",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 89
  },
  "hsl": {
    "h": 263.226,
    "s": 53.448,
    "l": 22.745
  },
  "oklch": {
    "l": 0.29228,
    "c": 0.10625,
    "h": 297.1
  },
  "luminance": 0.02209
}

Semantic roles & 50–950 ramp

primary

#331B59

secondary

#718F41

accent

#DD4BA4

background

#F6F5F8

surface

#ECE9F0

border

#C7C5CB

text

#07030B

muted

#7A787C

Preview Lab

Preview with #331B59

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

Preview Lab → · Contrast checker → · Palette generator →