#331B52#331B52

#331B52 is a dark, moderate violet. Relative luminance 0.021; OKLCH L 28.6% C 0.097 H 300.5°. Best body text is #FFFFFF at 14.79:1 contrast (WCAG AA passes).

Color values

HEX	#331B52
RGB	rgb(51, 27, 82)
HSL	hsl(266, 50%, 21%)
HSV	hsv(266, 67%, 32%)
CMYK	cmyk(37.8%, 67.1%, 0%, 67.8%)
CIE-LAB	lab(15.99, 24.91, -29.35)
CIE-LCH	lch(15.99, 38.50, 310.31°)
OKLab	oklab(28.64% 0.0491 -0.0833)
OKLCH	oklch(28.64% 0.097 300.5)
XYZ	xyz(3.2798, 2.0968, 8.2129)
Luminance	0.0210 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B52 #3A521B

analogous

#1B1F52 #331B52 #4F1B52

triadic

#331B52 #52331B #1B5233

tetradic

#331B52 #521B1F #3A521B #1B524F

square

#331B52 #521B1F #3A521B #1B524F

split-complementary

#331B52 #524F1B #1F521B

monochromatic

#0E0817 #160C24 #331B52 #502A80 #6C39AE

Accessibility & contrast

On white

14.79

#331B52 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#331B52 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B52

14.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B52	#FFFFFF	#000000	##FFFFFF
##331B52	1.00	14.79	1.42	14.79
#FFFFFF	14.79	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002854

Deuteranopia (green-blind)

#082751

Tritanopia (blue-blind)

#2C2733

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #331b52;
/* rgb */ color: rgb(51, 27, 82);
/* oklch */ color: oklch(28.6% 0.097 300.5);

Tailwind

colors: {
  custom: {
    50: '#6d5983',
    500: '#331b52',
    950: '#000000',
  },
}

SCSS

$custom: #331b52;
$custom-light: #6d5983;
$custom-dark: #000000;

JSON

{
  "hex": "#331b52",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 82
  },
  "hsl": {
    "h": 266.182,
    "s": 50.459,
    "l": 21.373
  },
  "oklch": {
    "l": 0.28644,
    "c": 0.0967,
    "h": 300.5
  },
  "luminance": 0.02097
}

Semantic roles & 50–950 ramp

primary

#331B52

secondary

#698841

accent

#DA4E9D

background

#F6F5F8

surface

#ECE9EF

border

#C7C5CA

text

#07030A

muted

#7A787C

Preview Lab

Preview with #331B52

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

Preview Lab → · Contrast checker → · Palette generator →