#331F7B#331F7B

#331F7B is a dark, vivid violet. Relative luminance 0.031; OKLCH L 33.0% C 0.146 H 285.1°. Best body text is #FFFFFF at 12.94:1 contrast (WCAG AA passes).

Color values

HEX	#331F7B
RGB	rgb(51, 31, 123)
HSL	hsl(253, 60%, 30%)
HSV	hsv(253, 75%, 48%)
CMYK	cmyk(58.5%, 74.8%, 0%, 51.8%)
CIE-LAB	lab(20.49, 35.27, -48.94)
CIE-LCH	lch(20.49, 60.32, 305.78°)
OKLab	oklab(33.01% 0.0381 -0.1409)
OKLCH	oklch(33.01% 0.146 285.1)
XYZ	xyz(5.4293, 3.1135, 19.0499)
Luminance	0.0311 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331F7B #677B1F

analogous

#1F397B #331F7B #611F7B

triadic

#331F7B #7B331F #1F7B33

tetradic

#331F7B #7B1F39 #677B1F #1F7B61

square

#331F7B #7B1F39 #677B1F #1F7B61

split-complementary

#331F7B #7B611F #397B1F

monochromatic

#0A0619 #1F134A #331F7B #472BAC #6344D0

Accessibility & contrast

On white

12.94

#331F7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#331F7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331F7B

12.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331F7B	#FFFFFF	#000000	##FFFFFF
##331F7B	1.00	12.94	1.62	12.94
#FFFFFF	12.94	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00347E

Deuteranopia (green-blind)

#002F79

Tritanopia (blue-blind)

#10384B

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #331f7b;
/* rgb */ color: rgb(51, 31, 123);
/* oklch */ color: oklch(33.0% 0.146 285.1);

Tailwind

colors: {
  custom: {
    50: '#745da2',
    500: '#331f7b',
    950: '#000000',
  },
}

SCSS

$custom: #331f7b;
$custom-light: #745da2;
$custom-dark: #000000;

JSON

{
  "hex": "#331f7b",
  "rgb": {
    "r": 51,
    "g": 31,
    "b": 123
  },
  "hsl": {
    "h": 253.043,
    "s": 59.74,
    "l": 30.196
  },
  "oklch": {
    "l": 0.33008,
    "c": 0.14592,
    "h": 285.1
  },
  "luminance": 0.03114
}

Semantic roles & 50–950 ramp

primary

#331F7B

secondary

#98AE48

accent

#E345C1

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #331F7B

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

Preview Lab → · Contrast checker → · Palette generator →