#331D74#331D74

#331D74 is a dark, vivid violet. Relative luminance 0.028; OKLCH L 32.0% C 0.139 H 287.3°. Best body text is #FFFFFF at 13.39:1 contrast (WCAG AA passes).

Color values

HEX	#331D74
RGB	rgb(51, 29, 116)
HSL	hsl(255, 60%, 28%)
HSV	hsv(255, 75%, 45%)
CMYK	cmyk(56%, 75%, 0%, 54.5%)
CIE-LAB	lab(19.40, 34.19, -46.24)
CIE-LCH	lch(19.40, 57.51, 306.48°)
OKLab	oklab(32.03% 0.0415 -0.133)
OKLCH	oklch(32.03% 0.139 287.3)
XYZ	xyz(4.9561, 2.8432, 16.8073)
Luminance	0.0284 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331D74 #5E741D

analogous

#1D3274 #331D74 #5E1D74

triadic

#331D74 #74331D #1D7433

tetradic

#331D74 #741D32 #5E741D #1D745E

square

#331D74 #741D32 #5E741D #1D745E

split-complementary

#331D74 #745E1D #32741D

monochromatic

#0B0618 #1D1143 #331D74 #4929A5 #623DCE

Accessibility & contrast

On white

13.39

#331D74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#331D74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331D74

13.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331D74	#FFFFFF	#000000	##FFFFFF
##331D74	1.00	13.39	1.57	13.39
#FFFFFF	13.39	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003177

Deuteranopia (green-blind)

#002D72

Tritanopia (blue-blind)

#183446

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #331d74;
/* rgb */ color: rgb(51, 29, 116);
/* oklch */ color: oklch(32.0% 0.139 287.3);

Tailwind

colors: {
  custom: {
    50: '#725b9d',
    500: '#331d74',
    950: '#000000',
  },
}

SCSS

$custom: #331d74;
$custom-light: #725b9d;
$custom-dark: #000000;

JSON

{
  "hex": "#331d74",
  "rgb": {
    "r": 51,
    "g": 29,
    "b": 116
  },
  "hsl": {
    "h": 255.172,
    "s": 60,
    "l": 28.431
  },
  "oklch": {
    "l": 0.32028,
    "c": 0.13926,
    "h": 287.3
  },
  "luminance": 0.02843
}

Semantic roles & 50–950 ramp

primary

#331D74

secondary

#8FA845

accent

#E345BB

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#09040E

muted

#7B797E

Preview Lab

Preview with #331D74

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

Preview Lab → · Contrast checker → · Palette generator →