#331C70#331C70

#331C70 is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.5% C 0.135 H 288.7°. Best body text is #FFFFFF at 13.63:1 contrast (WCAG AA passes).

Color values

HEX	#331C70
RGB	rgb(51, 28, 112)
HSL	hsl(256, 60%, 27%)
HSV	hsv(256, 75%, 44%)
CMYK	cmyk(54.5%, 75%, 0%, 56.1%)
CIE-LAB	lab(18.82, 33.51, -44.62)
CIE-LCH	lch(18.82, 55.80, 306.90°)
OKLab	oklab(31.49% 0.0433 -0.1282)
OKLCH	oklch(31.49% 0.135 288.7)
XYZ	xyz(4.7043, 2.7039, 15.6001)
Luminance	0.0270 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331C70 #59701C

analogous

#1C2F70 #331C70 #5D1C70

triadic

#331C70 #70331C #1C7033

tetradic

#331C70 #701C2F #59701C #1C705D

square

#331C70 #701C2F #59701C #1C705D

split-complementary

#331C70 #705D1C #2F701C

monochromatic

#0B0618 #1D103F #331C70 #4928A1 #6239CD

Accessibility & contrast

On white

13.63

#331C70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#331C70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331C70

13.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331C70	#FFFFFF	#000000	##FFFFFF
##331C70	1.00	13.63	1.54	13.63
#FFFFFF	13.63	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003072

Deuteranopia (green-blind)

#002C6E

Tritanopia (blue-blind)

#1C3244

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #331c70;
/* rgb */ color: rgb(51, 28, 112);
/* oklch */ color: oklch(31.5% 0.135 288.7);

Tailwind

colors: {
  custom: {
    50: '#725a9a',
    500: '#331c70',
    950: '#000000',
  },
}

SCSS

$custom: #331c70;
$custom-light: #725a9a;
$custom-dark: #000000;

JSON

{
  "hex": "#331c70",
  "rgb": {
    "r": 51,
    "g": 28,
    "b": 112
  },
  "hsl": {
    "h": 256.429,
    "s": 60,
    "l": 27.451
  },
  "oklch": {
    "l": 0.31492,
    "c": 0.13531,
    "h": 288.7
  },
  "luminance": 0.02704
}

Semantic roles & 50–950 ramp

primary

#331C70

secondary

#8AA543

accent

#E345B8

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #331C70

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

Preview Lab → · Contrast checker → · Palette generator →