#331B65#331B65

#331B65 is a dark, vivid violet. Relative luminance 0.024; OKLCH L 30.3% C 0.122 H 292.4°. Best body text is #FFFFFF at 14.14:1 contrast (WCAG AA passes).

Color values

HEX	#331B65
RGB	rgb(51, 27, 101)
HSL	hsl(259, 58%, 25%)
HSV	hsv(259, 73%, 40%)
CMYK	cmyk(49.5%, 73.3%, 0%, 60.4%)
CIE-LAB	lab(17.59, 30.67, -39.46)
CIE-LCH	lch(17.59, 49.97, 307.86°)
OKLab	oklab(30.3% 0.0466 -0.113)
OKLCH	oklch(30.3% 0.122 292.4)
XYZ	xyz(4.1055, 2.4271, 12.5616)
Luminance	0.0243 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B65 #4D651B

analogous

#1B2865 #331B65 #581B65

triadic

#331B65 #65331B #1B6533

tetradic

#331B65 #651B28 #4D651B #1B6558

square

#331B65 #651B28 #4D651B #1B6558

split-complementary

#331B65 #65581B #28651B

monochromatic

#0C0618 #1B0E35 #331B65 #4B2895 #6435C6

Accessibility & contrast

On white

14.14

#331B65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#331B65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B65

14.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B65	#FFFFFF	#000000	##FFFFFF
##331B65	1.00	14.14	1.49	14.14
#FFFFFF	14.14	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C67

Deuteranopia (green-blind)

#002A64

Tritanopia (blue-blind)

#242E3D

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #331b65;
/* rgb */ color: rgb(51, 27, 101);
/* oklch */ color: oklch(30.3% 0.122 292.4);

Tailwind

colors: {
  custom: {
    50: '#705992',
    500: '#331b65',
    950: '#000000',
  },
}

SCSS

$custom: #331b65;
$custom-light: #705992;
$custom-dark: #000000;

JSON

{
  "hex": "#331b65",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 101
  },
  "hsl": {
    "h": 259.459,
    "s": 57.813,
    "l": 25.098
  },
  "oklch": {
    "l": 0.30299,
    "c": 0.12227,
    "h": 292.4
  },
  "luminance": 0.02427
}

Semantic roles & 50–950 ramp

primary

#331B65

secondary

#7E9A41

accent

#E147AF

background

#F7F5F9

surface

#EDE9F1

border

#C8C5CB

text

#08040D

muted

#7B797E

Preview Lab

Preview with #331B65

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

Preview Lab → · Contrast checker → · Palette generator →