#331BA0#331BA0

#331BA0 is a dark, vivid violet. Relative luminance 0.040; OKLCH L 36.5% C 0.195 H 278.9°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#331BA0
RGB	rgb(51, 27, 160)
HSL	hsl(251, 71%, 37%)
HSV	hsv(251, 83%, 63%)
CMYK	cmyk(68.1%, 83.1%, 0%, 37.3%)
CIE-LAB	lab(23.75, 48.68, -66.61)
CIE-LCH	lch(23.75, 82.50, 306.16°)
OKLab	oklab(36.47% 0.03 -0.1924)
OKLCH	oklch(36.47% 0.195 278.9)
XYZ	xyz(8.1003, 4.0250, 33.6009)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331BA0 #88A01B

analogous

#1B46A0 #331BA0 #761BA0

triadic

#331BA0 #A0331B #1BA033

tetradic

#331BA0 #A01B46 #88A01B #1BA076

square

#331BA0 #A01B46 #88A01B #1BA076

split-complementary

#331BA0 #A0761B #46A01B

monochromatic

#120937 #22126C #331BA0 #4424D4 #6D53E2

Accessibility & contrast

On white

11.63

#331BA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#331BA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331BA0

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331BA0	#FFFFFF	#000000	##FFFFFF
##331BA0	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA4

Deuteranopia (green-blind)

#00339E

Tritanopia (blue-blind)

#00455F

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #331ba0;
/* rgb */ color: rgb(51, 27, 160);
/* oklch */ color: oklch(36.5% 0.195 278.9);

Tailwind

colors: {
  custom: {
    50: '#7b5dbd',
    500: '#331ba0',
    950: '#000000',
  },
}

SCSS

$custom: #331ba0;
$custom-light: #7b5dbd;
$custom-dark: #000000;

JSON

{
  "hex": "#331ba0",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 160
  },
  "hsl": {
    "h": 250.827,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.36468,
    "c": 0.19469,
    "h": 278.9
  },
  "luminance": 0.04026
}

Semantic roles & 50–950 ramp

primary

#331BA0

secondary

#B0C552

accent

#EE3ACD

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0B0412

muted

#7C7981

Preview Lab

Preview with #331BA0

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

Preview Lab → · Contrast checker → · Palette generator →