#331D6C#331D6C

#331D6C is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.3% C 0.129 H 289.6°. Best body text is #FFFFFF at 13.70:1 contrast (WCAG AA passes).

Color values

HEX	#331D6C
RGB	rgb(51, 29, 108)
HSL	hsl(257, 58%, 27%)
HSV	hsv(257, 73%, 42%)
CMYK	cmyk(52.8%, 73.1%, 0%, 57.6%)
CIE-LAB	lab(18.65, 31.67, -42.30)
CIE-LCH	lch(18.65, 52.84, 306.82°)
OKLab	oklab(31.26% 0.0432 -0.1214)
OKLCH	oklch(31.26% 0.129 289.6)
XYZ	xyz(4.5106, 2.6651, 14.4612)
Luminance	0.0267 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331D6C #566C1D

analogous

#1D2F6C #331D6C #5B1D6C

triadic

#331D6C #6C331D #1D6C33

tetradic

#331D6C #6C1D2F #566C1D #1D6C5B

square

#331D6C #6C1D2F #566C1D #1D6C5B

split-complementary

#331D6C #6C5B1D #2F6C1D

monochromatic

#0B0618 #1C103C #331D6C #4A2A9C #6239CA

Accessibility & contrast

On white

13.70

#331D6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#331D6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331D6C

13.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331D6C	#FFFFFF	#000000	##FFFFFF
##331D6C	1.00	13.70	1.53	13.70
#FFFFFF	13.70	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F6E

Deuteranopia (green-blind)

#002B6A

Tritanopia (blue-blind)

#1F3142

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #331d6c;
/* rgb */ color: rgb(51, 29, 108);
/* oklch */ color: oklch(31.3% 0.129 289.6);

Tailwind

colors: {
  custom: {
    50: '#715b97',
    500: '#331d6c',
    950: '#000000',
  },
}

SCSS

$custom: #331d6c;
$custom-light: #715b97;
$custom-dark: #000000;

JSON

{
  "hex": "#331d6c",
  "rgb": {
    "r": 51,
    "g": 29,
    "b": 108
  },
  "hsl": {
    "h": 256.709,
    "s": 57.664,
    "l": 26.863
  },
  "oklch": {
    "l": 0.31257,
    "c": 0.12884,
    "h": 289.6
  },
  "luminance": 0.02665
}

Semantic roles & 50–950 ramp

primary

#331D6C

secondary

#87A144

accent

#E147B6

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040D

muted

#7B797E

Preview Lab

Preview with #331D6C

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

Preview Lab → · Contrast checker → · Palette generator →