#331F91#331F91

#331F91 is a dark, vivid violet. Relative luminance 0.037; OKLCH L 35.3% C 0.173 H 280.8°. Best body text is #FFFFFF at 12.03:1 contrast (WCAG AA passes).

Color values

HEX	#331F91
RGB	rgb(51, 31, 145)
HSL	hsl(251, 65%, 35%)
HSV	hsv(251, 79%, 57%)
CMYK	cmyk(64.8%, 78.6%, 0%, 43.1%)
CIE-LAB	lab(22.75, 42.20, -59.05)
CIE-LCH	lch(22.75, 72.58, 305.55°)
OKLab	oklab(35.28% 0.0324 -0.1704)
OKLCH	oklch(35.28% 0.173 280.8)
XYZ	xyz(6.9644, 3.7276, 27.1351)
Luminance	0.0373 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331F91 #7D911F

analogous

#1F4491 #331F91 #6C1F91

triadic

#331F91 #91331F #1F9133

tetradic

#331F91 #911F44 #7D911F #1F916C

square

#331F91 #911F44 #7D911F #1F916C

split-complementary

#331F91 #916C1F #44911F

monochromatic

#10092C #21145F #331F91 #452AC3 #6951DA

Accessibility & contrast

On white

12.03

#331F91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#331F91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331F91

12.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331F91	#FFFFFF	#000000	##FFFFFF
##331F91	1.00	12.03	1.75	12.03
#FFFFFF	12.03	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A94

Deuteranopia (green-blind)

#00328F

Tritanopia (blue-blind)

#004057

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #331f91;
/* rgb */ color: rgb(51, 31, 145);
/* oklch */ color: oklch(35.3% 0.173 280.8);

Tailwind

colors: {
  custom: {
    50: '#785eb2',
    500: '#331f91',
    950: '#000000',
  },
}

SCSS

$custom: #331f91;
$custom-light: #785eb2;
$custom-dark: #000000;

JSON

{
  "hex": "#331f91",
  "rgb": {
    "r": 51,
    "g": 31,
    "b": 145
  },
  "hsl": {
    "h": 250.526,
    "s": 64.773,
    "l": 34.51
  },
  "oklch": {
    "l": 0.35278,
    "c": 0.17346,
    "h": 280.8
  },
  "luminance": 0.03728
}

Semantic roles & 50–950 ramp

primary

#331F91

secondary

#AABD4F

accent

#E840CA

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #331F91

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

Preview Lab → · Contrast checker → · Palette generator →