#331C73#331C73

#331C73 is a dark, vivid violet. Relative luminance 0.028; OKLCH L 31.8% C 0.139 H 287.8°. Best body text is #FFFFFF at 13.51:1 contrast (WCAG AA passes).

Color values

HEX	#331C73
RGB	rgb(51, 28, 115)
HSL	hsl(256, 61%, 28%)
HSV	hsv(256, 76%, 45%)
CMYK	cmyk(55.7%, 75.7%, 0%, 54.9%)
CIE-LAB	lab(19.11, 34.44, -46.09)
CIE-LCH	lch(19.11, 57.54, 306.77°)
OKLab	oklab(31.79% 0.0426 -0.1325)
OKLCH	oklch(31.79% 0.139 287.8)
XYZ	xyz(4.8741, 2.7719, 16.4945)
Luminance	0.0277 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331C73 #5C731C

analogous

#1C3073 #331C73 #5E1C73

triadic

#331C73 #73331C #1C7333

tetradic

#331C73 #731C30 #5C731C #1C735E

square

#331C73 #731C30 #5C731C #1C735E

split-complementary

#331C73 #735E1C #30731C

monochromatic

#0B0619 #1D1042 #331C73 #4928A4 #623ACF

Accessibility & contrast

On white

13.51

#331C73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#331C73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331C73

13.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331C73	#FFFFFF	#000000	##FFFFFF
##331C73	1.00	13.51	1.55	13.51
#FFFFFF	13.51	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003076

Deuteranopia (green-blind)

#002C71

Tritanopia (blue-blind)

#193345

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #331c73;
/* rgb */ color: rgb(51, 28, 115);
/* oklch */ color: oklch(31.8% 0.139 287.8);

Tailwind

colors: {
  custom: {
    50: '#725b9c',
    500: '#331c73',
    950: '#000000',
  },
}

SCSS

$custom: #331c73;
$custom-light: #725b9c;
$custom-dark: #000000;

JSON

{
  "hex": "#331c73",
  "rgb": {
    "r": 51,
    "g": 28,
    "b": 115
  },
  "hsl": {
    "h": 255.862,
    "s": 60.839,
    "l": 28.039
  },
  "oklch": {
    "l": 0.31786,
    "c": 0.13917,
    "h": 287.8
  },
  "luminance": 0.02772
}

Semantic roles & 50–950 ramp

primary

#331C73

secondary

#8DA743

accent

#E444BA

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#09040E

muted

#7B797E

Preview Lab

Preview with #331C73

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

Preview Lab → · Contrast checker → · Palette generator →