#643FBA#643FBA

#643FBA is a mid, vivid violet. Relative luminance 0.098; OKLCH L 48.1% C 0.183 H 291.9°. Best body text is #FFFFFF at 7.09:1 contrast (WCAG AA passes).

Color values

HEX	#643FBA
RGB	rgb(100, 63, 186)
HSL	hsl(258, 49%, 49%)
HSV	hsv(258, 66%, 73%)
CMYK	cmyk(46.2%, 66.1%, 0%, 27.1%)
CIE-LAB	lab(37.50, 44.87, -59.45)
CIE-LCH	lch(37.50, 74.48, 307.05°)
OKLab	oklab(48.06% 0.0682 -0.1701)
OKLCH	oklch(48.06% 0.183 291.9)
XYZ	xyz(15.8935, 9.8090, 47.5008)
Luminance	0.0981 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.03

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643FBA #95BA3F

analogous

#3F58BA #643FBA #A23FBA

triadic

#643FBA #BA643F #3FBA64

tetradic

#643FBA #BA3F58 #95BA3F #3FBAA2

square

#643FBA #BA3F58 #95BA3F #3FBAA2

split-complementary

#643FBA #BAA23F #58BA3F

monochromatic

#33205F #4B308C #643FBA #876ACC #AC97DC

Accessibility & contrast

On white

7.09

#643FBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#643FBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643FBA

7.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FBA	#FFFFFF	#000000	##FFFFFF
##643FBA	1.00	7.09	2.96	7.09
#FFFFFF	7.09	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABE

Deuteranopia (green-blind)

#0056B7

Tritanopia (blue-blind)

#4A5D77

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #643fba;
/* rgb */ color: rgb(100, 63, 186);
/* oklch */ color: oklch(48.1% 0.183 291.9);

Tailwind

colors: {
  custom: {
    50: '#9776d0',
    500: '#643fba',
    950: '#000000',
  },
}

SCSS

$custom: #643fba;
$custom-light: #9776d0;
$custom-dark: #000000;

JSON

{
  "hex": "#643fba",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 186
  },
  "hsl": {
    "h": 258.049,
    "s": 49.398,
    "l": 48.824
  },
  "oklch": {
    "l": 0.48062,
    "c": 0.18331,
    "h": 291.9
  },
  "luminance": 0.0981
}

Semantic roles & 50–950 ramp

primary

#643FBA

secondary

#B6C88D

accent

#D94FAF

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0914

muted

#7E7B82

Preview Lab

Preview with #643FBA

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

Preview Lab → · Contrast checker → · Palette generator →