#331B54#331B54

#331B54 is a dark, moderate violet. Relative luminance 0.021; OKLCH L 28.8% C 0.099 H 299.5°. Best body text is #FFFFFF at 14.73:1 contrast (WCAG AA passes).

Color values

HEX	#331B54
RGB	rgb(51, 27, 84)
HSL	hsl(265, 51%, 22%)
HSV	hsv(265, 68%, 33%)
CMYK	cmyk(39.3%, 67.9%, 0%, 67.1%)
CIE-LAB	lab(16.14, 25.50, -30.46)
CIE-LCH	lch(16.14, 39.72, 309.94°)
OKLab	oklab(28.81% 0.0489 -0.0866)
OKLCH	oklch(28.81% 0.099 299.5)
XYZ	xyz(3.3570, 2.1277, 8.6196)
Luminance	0.0213 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B54 #3C541B

analogous

#1B2054 #331B54 #501B54

triadic

#331B54 #54331B #1B5433

tetradic

#331B54 #541B20 #3C541B #1B5450

square

#331B54 #541B20 #3C541B #1B5450

split-complementary

#331B54 #54501B #20541B

monochromatic

#0E0717 #170C26 #331B54 #4F2A82 #6B39B1

Accessibility & contrast

On white

14.73

#331B54 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#331B54 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B54

14.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B54	#FFFFFF	#000000	##FFFFFF
##331B54	1.00	14.73	1.43	14.73
#FFFFFF	14.73	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002856

Deuteranopia (green-blind)

#052853

Tritanopia (blue-blind)

#2C2734

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #331b54;
/* rgb */ color: rgb(51, 27, 84);
/* oklch */ color: oklch(28.8% 0.099 299.5);

Tailwind

colors: {
  custom: {
    50: '#6e5984',
    500: '#331b54',
    950: '#000000',
  },
}

SCSS

$custom: #331b54;
$custom-light: #6e5984;
$custom-dark: #000000;

JSON

{
  "hex": "#331b54",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 84
  },
  "hsl": {
    "h": 265.263,
    "s": 51.351,
    "l": 21.765
  },
  "oklch": {
    "l": 0.28808,
    "c": 0.09945,
    "h": 299.5
  },
  "luminance": 0.02128
}

Semantic roles & 50–950 ramp

primary

#331B54

secondary

#6B8A41

accent

#DB4D9F

background

#F6F5F8

surface

#ECE9EF

border

#C7C5CA

text

#07030B

muted

#7A787C

Preview Lab

Preview with #331B54

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

Preview Lab → · Contrast checker → · Palette generator →