#331B40#331B40

#331B40 is a dark, moderate violet. Relative luminance 0.019; OKLCH L 27.3% C 0.072 H 312.5°. Best body text is #FFFFFF at 15.31:1 contrast (WCAG AA passes).

Color values

HEX	#331B40
RGB	rgb(51, 27, 64)
HSL	hsl(279, 41%, 18%)
HSV	hsv(279, 58%, 25%)
CMYK	cmyk(20.3%, 57.8%, 0%, 74.9%)
CIE-LAB	lab(14.72, 19.80, -18.97)
CIE-LCH	lch(14.72, 27.42, 316.23°)
OKLab	oklab(27.31% 0.0485 -0.0529)
OKLCH	oklch(27.31% 0.072 312.5)
XYZ	xyz(2.6824, 1.8579, 5.0668)
Luminance	0.0186 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B40 #28401B

analogous

#201B40 #331B40 #401B3A

triadic

#331B40 #40331B #1B4033

tetradic

#331B40 #40201B #28401B #1B3A40

square

#331B40 #40201B #28401B #1B3A40

split-complementary

#331B40 #3A401B #1B4020

monochromatic

#110916 #110916 #331B40 #552D6B #783F96

Accessibility & contrast

On white

15.31

#331B40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#331B40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B40

15.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B40	#FFFFFF	#000000	##FFFFFF
##331B40	1.00	15.31	1.37	15.31
#FFFFFF	15.31	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#122441

Deuteranopia (green-blind)

#19263F

Tritanopia (blue-blind)

#32212A

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #331b40;
/* rgb */ color: rgb(51, 27, 64);
/* oklch */ color: oklch(27.3% 0.072 312.5);

Tailwind

colors: {
  custom: {
    50: '#6c5875',
    500: '#331b40',
    950: '#000000',
  },
}

SCSS

$custom: #331b40;
$custom-light: #6c5875;
$custom-dark: #000000;

JSON

{
  "hex": "#331b40",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 64
  },
  "hsl": {
    "h": 278.919,
    "s": 40.659,
    "l": 17.843
  },
  "oklch": {
    "l": 0.2731,
    "c": 0.07177,
    "h": 312.5
  },
  "luminance": 0.01858
}

Semantic roles & 50–950 ramp

primary

#331B40

secondary

#547541

accent

#D15782

background

#F6F5F7

surface

#EBE9ED

border

#C6C5C8

text

#070308

muted

#7A787B

Preview Lab

Preview with #331B40

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

Preview Lab → · Contrast checker → · Palette generator →