#331F6B#331F6B

#331F6B is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.5% C 0.125 H 289.3°. Best body text is #FFFFFF at 13.56:1 contrast (WCAG AA passes).

Color values

HEX	#331F6B
RGB	rgb(51, 31, 107)
HSL	hsl(256, 55%, 27%)
HSV	hsv(256, 71%, 42%)
CMYK	cmyk(52.3%, 71%, 0%, 58%)
CIE-LAB	lab(18.99, 30.16, -41.09)
CIE-LCH	lch(18.99, 50.97, 306.28°)
OKLab	oklab(31.48% 0.0413 -0.1178)
OKLCH	oklch(31.48% 0.125 289.3)
XYZ	xyz(4.5083, 2.7451, 14.1994)
Luminance	0.0274 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331F6B #576B1F

analogous

#1F316B #331F6B #591F6B

triadic

#331F6B #6B331F #1F6B33

tetradic

#331F6B #6B1F31 #576B1F #1F6B59

square

#331F6B #6B1F31 #576B1F #1F6B59

split-complementary

#331F6B #6B591F #316B1F

monochromatic

#0B0718 #1C113C #331F6B #4A2D9A #623DC7

Accessibility & contrast

On white

13.56

#331F6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#331F6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331F6B

13.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331F6B	#FFFFFF	#000000	##FFFFFF
##331F6B	1.00	13.56	1.55	13.56
#FFFFFF	13.56	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00306D

Deuteranopia (green-blind)

#002C69

Tritanopia (blue-blind)

#203242

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #331f6b;
/* rgb */ color: rgb(51, 31, 107);
/* oklch */ color: oklch(31.5% 0.125 289.3);

Tailwind

colors: {
  custom: {
    50: '#715c96',
    500: '#331f6b',
    950: '#000000',
  },
}

SCSS

$custom: #331f6b;
$custom-light: #715c96;
$custom-dark: #000000;

JSON

{
  "hex": "#331f6b",
  "rgb": {
    "r": 51,
    "g": 31,
    "b": 107
  },
  "hsl": {
    "h": 255.789,
    "s": 55.072,
    "l": 27.059
  },
  "oklch": {
    "l": 0.31475,
    "c": 0.12485,
    "h": 289.3
  },
  "luminance": 0.02745
}

Semantic roles & 50–950 ramp

primary

#331F6B

secondary

#889F47

accent

#DE49B7

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040D

muted

#7B797E

Preview Lab

Preview with #331F6B

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

Preview Lab → · Contrast checker → · Palette generator →