#331B4A#331B4A

#331B4A is a dark, moderate violet. Relative luminance 0.020; OKLCH L 28.0% C 0.086 H 305.1°. Best body text is #FFFFFF at 15.04:1 contrast (WCAG AA passes).

Color values

HEX	#331B4A
RGB	rgb(51, 27, 74)
HSL	hsl(271, 47%, 20%)
HSV	hsv(271, 64%, 29%)
CMYK	cmyk(31.1%, 63.5%, 0%, 71%)
CIE-LAB	lab(15.39, 22.58, -24.84)
CIE-LCH	lch(15.39, 33.57, 312.26°)
OKLab	oklab(28.02% 0.0492 -0.0701)
OKLCH	oklch(28.02% 0.086 305.1)
XYZ	xyz(2.9929, 1.9821, 6.7021)
Luminance	0.0198 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B4A #324A1B

analogous

#1B1B4A #331B4A #4A1B4A

triadic

#331B4A #4A331B #1B4A33

tetradic

#331B4A #4A1B1B #324A1B #1B4A4A

square

#331B4A #4A1B1B #324A1B #1B4A4A

split-complementary

#331B4A #4A4A1B #1B4A1B

monochromatic

#0F0816 #140B1D #331B4A #522B77 #713CA4

Accessibility & contrast

On white

15.04

#331B4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#331B4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B4A

15.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B4A	#FFFFFF	#000000	##FFFFFF
##331B4A	1.00	15.04	1.40	15.04
#FFFFFF	15.04	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#08264C

Deuteranopia (green-blind)

#122749

Tritanopia (blue-blind)

#2F242F

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #331b4a;
/* rgb */ color: rgb(51, 27, 74);
/* oklch */ color: oklch(28.0% 0.086 305.1);

Tailwind

colors: {
  custom: {
    50: '#6d587d',
    500: '#331b4a',
    950: '#000000',
  },
}

SCSS

$custom: #331b4a;
$custom-light: #6d587d;
$custom-dark: #000000;

JSON

{
  "hex": "#331b4a",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 74
  },
  "hsl": {
    "h": 270.638,
    "s": 46.535,
    "l": 19.804
  },
  "oklch": {
    "l": 0.2802,
    "c": 0.08564,
    "h": 305.1
  },
  "luminance": 0.01982
}

Semantic roles & 50–950 ramp

primary

#331B4A

secondary

#608041

accent

#D65292

background

#F6F5F7

surface

#EBE9EE

border

#C6C5C9

text

#070309

muted

#7A787B

Preview Lab

Preview with #331B4A

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

Preview Lab → · Contrast checker → · Palette generator →