#643FBC#643FBC

#643FBC is a mid, vivid violet. Relative luminance 0.099; OKLCH L 48.2% C 0.186 H 291.5°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#643FBC
RGB	rgb(100, 63, 188)
HSL	hsl(258, 50%, 49%)
HSV	hsv(258, 66%, 74%)
CMYK	cmyk(46.8%, 66.5%, 0%, 26.3%)
CIE-LAB	lab(37.65, 45.43, -60.37)
CIE-LCH	lch(37.65, 75.56, 306.96°)
OKLab	oklab(48.22% 0.068 -0.1728)
OKLCH	oklch(48.22% 0.186 291.5)
XYZ	xyz(16.1076, 9.8946, 48.6284)
Luminance	0.0989 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 1.75

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643FBC #97BC3F

analogous

#3F59BC #643FBC #A33FBC

triadic

#643FBC #BC643F #3FBC64

tetradic

#643FBC #BC3F59 #97BC3F #3FBCA3

square

#643FBC #BC3F59 #97BC3F #3FBCA3

split-complementary

#643FBC #BCA33F #59BC3F

monochromatic

#332060 #4C308E #643FBC #886BCD #AD99DD

Accessibility & contrast

On white

7.05

#643FBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#643FBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643FBC

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FBC	#FFFFFF	#000000	##FFFFFF
##643FBC	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC0

Deuteranopia (green-blind)

#0056B9

Tritanopia (blue-blind)

#495D78

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #643fbc;
/* rgb */ color: rgb(100, 63, 188);
/* oklch */ color: oklch(48.2% 0.186 291.5);

Tailwind

colors: {
  custom: {
    50: '#9776d1',
    500: '#643fbc',
    950: '#000000',
  },
}

SCSS

$custom: #643fbc;
$custom-light: #9776d1;
$custom-dark: #000000;

JSON

{
  "hex": "#643fbc",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 188
  },
  "hsl": {
    "h": 257.76,
    "s": 49.801,
    "l": 49.216
  },
  "oklch": {
    "l": 0.48222,
    "c": 0.18573,
    "h": 291.5
  },
  "luminance": 0.09895
}

Semantic roles & 50–950 ramp

primary

#643FBC

secondary

#B7C98E

accent

#D94EB0

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0E0914

muted

#7E7B83

Preview Lab

Preview with #643FBC

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

Preview Lab → · Contrast checker → · Palette generator →