#331C72#331C72

#331C72 is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.7% C 0.138 H 288.1°. Best body text is #FFFFFF at 13.55:1 contrast (WCAG AA passes).

Color values

HEX	#331C72
RGB	rgb(51, 28, 114)
HSL	hsl(256, 61%, 28%)
HSV	hsv(256, 75%, 45%)
CMYK	cmyk(55.3%, 75.4%, 0%, 55.3%)
CIE-LAB	lab(19.01, 34.13, -45.60)
CIE-LCH	lch(19.01, 56.96, 306.81°)
OKLab	oklab(31.69% 0.0428 -0.1311)
OKLCH	oklch(31.69% 0.138 288.1)
XYZ	xyz(4.8169, 2.7490, 16.1931)
Luminance	0.0275 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331C72 #5B721C

analogous

#1C3072 #331C72 #5E1C72

triadic

#331C72 #72331C #1C7233

tetradic

#331C72 #721C30 #5B721C #1C725E

square

#331C72 #721C30 #5B721C #1C725E

split-complementary

#331C72 #725E1C #30721C

monochromatic

#0B0619 #1D1041 #331C72 #4928A3 #623ACF

Accessibility & contrast

On white

13.55

#331C72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#331C72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331C72

13.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331C72	#FFFFFF	#000000	##FFFFFF
##331C72	1.00	13.55	1.55	13.55
#FFFFFF	13.55	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003075

Deuteranopia (green-blind)

#002C70

Tritanopia (blue-blind)

#1A3345

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #331c72;
/* rgb */ color: rgb(51, 28, 114);
/* oklch */ color: oklch(31.7% 0.138 288.1);

Tailwind

colors: {
  custom: {
    50: '#725a9b',
    500: '#331c72',
    950: '#000000',
  },
}

SCSS

$custom: #331c72;
$custom-light: #725a9b;
$custom-dark: #000000;

JSON

{
  "hex": "#331c72",
  "rgb": {
    "r": 51,
    "g": 28,
    "b": 114
  },
  "hsl": {
    "h": 256.047,
    "s": 60.563,
    "l": 27.843
  },
  "oklch": {
    "l": 0.31688,
    "c": 0.13789,
    "h": 288.1
  },
  "luminance": 0.02749
}

Semantic roles & 50–950 ramp

primary

#331C72

secondary

#8CA643

accent

#E444B9

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #331C72

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

Preview Lab → · Contrast checker → · Palette generator →