#331B6C#331B6C

#331B6C is a dark, vivid violet. Relative luminance 0.026; OKLCH L 31.0% C 0.131 H 290.1°. Best body text is #FFFFFF at 13.87:1 contrast (WCAG AA passes).

Color values

HEX	#331B6C
RGB	rgb(51, 27, 108)
HSL	hsl(258, 60%, 26%)
HSV	hsv(258, 75%, 42%)
CMYK	cmyk(52.8%, 75%, 0%, 57.6%)
CIE-LAB	lab(18.23, 32.83, -42.98)
CIE-LCH	lch(18.23, 54.09, 307.37°)
OKLab	oklab(30.96% 0.0452 -0.1234)
OKLCH	oklch(30.96% 0.131 290.1)
XYZ	xyz(4.4632, 2.5702, 14.4454)
Luminance	0.0257 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331B6C #546C1B

analogous

#1B2C6C #331B6C #5C1B6C

triadic

#331B6C #6C331B #1B6C33

tetradic

#331B6C #6C1B2C #546C1B #1B6C5C

square

#331B6C #6C1B2C #546C1B #1B6C5C

split-complementary

#331B6C #6C5C1B #2C6C1B

monochromatic

#0C0618 #1C0F3B #331B6C #4A279D #6235CC

Accessibility & contrast

On white

13.87

#331B6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#331B6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331B6C

13.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331B6C	#FFFFFF	#000000	##FFFFFF
##331B6C	1.00	13.87	1.51	13.87
#FFFFFF	13.87	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E6E

Deuteranopia (green-blind)

#002B6A

Tritanopia (blue-blind)

#1F3041

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #331b6c;
/* rgb */ color: rgb(51, 27, 108);
/* oklch */ color: oklch(31.0% 0.131 290.1);

Tailwind

colors: {
  custom: {
    50: '#715a97',
    500: '#331b6c',
    950: '#000000',
  },
}

SCSS

$custom: #331b6c;
$custom-light: #715a97;
$custom-dark: #000000;

JSON

{
  "hex": "#331b6c",
  "rgb": {
    "r": 51,
    "g": 27,
    "b": 108
  },
  "hsl": {
    "h": 257.778,
    "s": 60,
    "l": 26.471
  },
  "oklch": {
    "l": 0.30961,
    "c": 0.13139,
    "h": 290.1
  },
  "luminance": 0.0257
}

Semantic roles & 50–950 ramp

primary

#331B6C

secondary

#85A142

accent

#E345B4

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040D

muted

#7B797E

Preview Lab

Preview with #331B6C

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

Preview Lab → · Contrast checker → · Palette generator →