#331B42#331B42

#331B42 is a dark, moderate violet. Relative luminance 0.019; OKLCH L 27.4% C 0.075 H 310.8°. Best body text is #FFFFFF at 15.26:1 contrast (WCAG AA passes).

Color values

HEX	#331B42
RGB	rgb(51, 27, 66)
HSL	hsl(277, 42%, 18%)
HSV	hsv(277, 59%, 26%)
CMYK	cmyk(22.7%, 59.1%, 0%, 74.1%)
CIE-LAB	lab(14.85, 20.34, -20.16)
CIE-LCH	lch(14.85, 28.64, 315.25°)
OKLab	oklab(27.45% 0.0487 -0.0564)
OKLCH	oklch(27.45% 0.075 310.8)
XYZ	xyz(2.7404, 1.8811, 5.3719)
Luminance	0.0188 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B42 #2A421B

analogous

#1F1B42 #331B42 #421B3D

triadic

#331B42 #42331B #1B4233

tetradic

#331B42 #421F1B #2A421B #1B3D42

square

#331B42 #421F1B #2A421B #1B3D42

split-complementary

#331B42 #3D421B #1B421F

monochromatic

#110916 #110917 #331B42 #552D6D #763F99

Accessibility & contrast

On white

15.26

#331B42 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#331B42 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B42

15.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B42	#FFFFFF	#000000	##FFFFFF
##331B42	1.00	15.26	1.38	15.26
#FFFFFF	15.26	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#112443

Deuteranopia (green-blind)

#182641

Tritanopia (blue-blind)

#31222B

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #331b42;
/* rgb */ color: rgb(51, 27, 66);
/* oklch */ color: oklch(27.4% 0.075 310.8);

Tailwind

colors: {
  custom: {
    50: '#6c5876',
    500: '#331b42',
    950: '#000000',
  },
}

SCSS

$custom: #331b42;
$custom-light: #6c5876;
$custom-dark: #000000;

JSON

{
  "hex": "#331b42",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 66
  },
  "hsl": {
    "h": 276.923,
    "s": 41.935,
    "l": 18.235
  },
  "oklch": {
    "l": 0.27445,
    "c": 0.07454,
    "h": 310.8
  },
  "luminance": 0.01881
}

Semantic roles & 50–950 ramp

primary

#331B42

secondary

#567841

accent

#D25686

background

#F6F5F7

surface

#EBE9ED

border

#C6C5C8

text

#070308

muted

#7A787B

Preview Lab

Preview with #331B42

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

Preview Lab → · Contrast checker → · Palette generator →