#331C74#331C74

#331C74 is a dark, vivid violet. Relative luminance 0.028; OKLCH L 31.9% C 0.140 H 287.5°. Best body text is #FFFFFF at 13.47:1 contrast (WCAG AA passes).

Color values

HEX	#331C74
RGB	rgb(51, 28, 116)
HSL	hsl(256, 61%, 28%)
HSV	hsv(256, 76%, 45%)
CMYK	cmyk(56%, 75.9%, 0%, 54.5%)
CIE-LAB	lab(19.20, 34.75, -46.57)
CIE-LCH	lch(19.20, 58.11, 306.73°)
OKLab	oklab(31.89% 0.0424 -0.1339)
OKLCH	oklch(31.89% 0.14 287.5)
XYZ	xyz(4.9319, 2.7950, 16.7992)
Luminance	0.0279 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331C74 #5D741C

analogous

#1C3174 #331C74 #5F1C74

triadic

#331C74 #74331C #1C7433

tetradic

#331C74 #741C31 #5D741C #1C745F

square

#331C74 #741C31 #5D741C #1C745F

split-complementary

#331C74 #745F1C #31741C

monochromatic

#0B0619 #1D1043 #331C74 #4928A5 #623BD0

Accessibility & contrast

On white

13.47

#331C74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#331C74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331C74

13.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331C74	#FFFFFF	#000000	##FFFFFF
##331C74	1.00	13.47	1.56	13.47
#FFFFFF	13.47	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003177

Deuteranopia (green-blind)

#002C72

Tritanopia (blue-blind)

#193446

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #331c74;
/* rgb */ color: rgb(51, 28, 116);
/* oklch */ color: oklch(31.9% 0.140 287.5);

Tailwind

colors: {
  custom: {
    50: '#735b9d',
    500: '#331c74',
    950: '#000000',
  },
}

SCSS

$custom: #331c74;
$custom-light: #735b9d;
$custom-dark: #000000;

JSON

{
  "hex": "#331c74",
  "rgb": {
    "r": 51,
    "g": 28,
    "b": 116
  },
  "hsl": {
    "h": 255.682,
    "s": 61.111,
    "l": 28.235
  },
  "oklch": {
    "l": 0.31885,
    "c": 0.14045,
    "h": 287.5
  },
  "luminance": 0.02795
}

Semantic roles & 50–950 ramp

primary

#331C74

secondary

#8EA843

accent

#E444BA

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#09040E

muted

#7B797E

Preview Lab

Preview with #331C74

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

Preview Lab → · Contrast checker → · Palette generator →