#331D9A#331D9A

#331D9A is a dark, vivid violet. Relative luminance 0.039; OKLCH L 36.0% C 0.186 H 279.6°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#331D9A
RGB	rgb(51, 29, 154)
HSL	hsl(251, 68%, 36%)
HSV	hsv(251, 81%, 60%)
CMYK	cmyk(66.9%, 81.2%, 0%, 39.6%)
CIE-LAB	lab(23.39, 45.97, -63.55)
CIE-LCH	lch(23.39, 78.43, 305.88°)
OKLab	oklab(36.02% 0.0309 -0.1835)
OKLCH	oklch(36.02% 0.186 279.6)
XYZ	xyz(7.6355, 3.9150, 30.9189)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331D9A #849A1D

analogous

#1D459A #331D9A #711D9A

triadic

#331D9A #9A331D #1D9A33

tetradic

#331D9A #9A1D45 #849A1D #1D9A71

square

#331D9A #9A1D45 #849A1D #1D9A71

split-complementary

#331D9A #9A711D #459A1D

monochromatic

#110A33 #221366 #331D9A #4427CE #6B53DF

Accessibility & contrast

On white

11.78

#331D9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#331D9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331D9A

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331D9A	#FFFFFF	#000000	##FFFFFF
##331D9A	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9D

Deuteranopia (green-blind)

#003398

Tritanopia (blue-blind)

#00435C

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #331d9a;
/* rgb */ color: rgb(51, 29, 154);
/* oklch */ color: oklch(36.0% 0.186 279.6);

Tailwind

colors: {
  custom: {
    50: '#7a5db9',
    500: '#331d9a',
    950: '#000000',
  },
}

SCSS

$custom: #331d9a;
$custom-light: #7a5db9;
$custom-dark: #000000;

JSON

{
  "hex": "#331d9a",
  "rgb": {
    "r": 51,
    "g": 29,
    "b": 154
  },
  "hsl": {
    "h": 250.56,
    "s": 68.306,
    "l": 35.882
  },
  "oklch": {
    "l": 0.36015,
    "c": 0.18606,
    "h": 279.6
  },
  "luminance": 0.03916
}

Semantic roles & 50–950 ramp

primary

#331D9A

secondary

#AEC251

accent

#EB3DCC

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0B0412

muted

#7C7981

Preview Lab

Preview with #331D9A

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

Preview Lab → · Contrast checker → · Palette generator →