#331D91#331D91

#331D91 is a dark, vivid violet. Relative luminance 0.036; OKLCH L 35.0% C 0.175 H 281.0°. Best body text is #FFFFFF at 12.17:1 contrast (WCAG AA passes).

Color values

HEX	#331D91
RGB	rgb(51, 29, 145)
HSL	hsl(251, 67%, 34%)
HSV	hsv(251, 80%, 57%)
CMYK	cmyk(64.8%, 80%, 0%, 43.1%)
CIE-LAB	lab(22.40, 43.22, -59.63)
CIE-LCH	lch(22.40, 73.65, 305.93°)
OKLab	oklab(35.03% 0.0336 -0.1721)
OKLCH	oklch(35.03% 0.175 281)
XYZ	xyz(6.9138, 3.6263, 27.1182)
Luminance	0.0363 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331D91 #7B911D

analogous

#1D4191 #331D91 #6D1D91

triadic

#331D91 #91331D #1D9133

tetradic

#331D91 #911D41 #7B911D #1D916D

square

#331D91 #911D41 #7B911D #1D916D

split-complementary

#331D91 #916D1D #41911D

monochromatic

#0F092B #21135E #331D91 #4527C4 #684DDB

Accessibility & contrast

On white

12.17

#331D91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#331D91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331D91

12.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331D91	#FFFFFF	#000000	##FFFFFF
##331D91	1.00	12.17	1.73	12.17
#FFFFFF	12.17	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003994

Deuteranopia (green-blind)

#00318F

Tritanopia (blue-blind)

#004057

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #331d91;
/* rgb */ color: rgb(51, 29, 145);
/* oklch */ color: oklch(35.0% 0.175 281.0);

Tailwind

colors: {
  custom: {
    50: '#785db2',
    500: '#331d91',
    950: '#000000',
  },
}

SCSS

$custom: #331d91;
$custom-light: #785db2;
$custom-dark: #000000;

JSON

{
  "hex": "#331d91",
  "rgb": {
    "r": 51,
    "g": 29,
    "b": 145
  },
  "hsl": {
    "h": 251.379,
    "s": 66.667,
    "l": 34.118
  },
  "oklch": {
    "l": 0.35031,
    "c": 0.17534,
    "h": 281
  },
  "luminance": 0.03627
}

Semantic roles & 50–950 ramp

primary

#331D91

secondary

#A8BE4C

accent

#EA3EC9

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #331D91

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

Preview Lab → · Contrast checker → · Palette generator →