#643FBF#643FBF

#643FBF is a mid, vivid violet. Relative luminance 0.100; OKLCH L 48.5% C 0.189 H 290.9°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#643FBF
RGB	rgb(100, 63, 191)
HSL	hsl(257, 50%, 50%)
HSV	hsv(257, 67%, 75%)
CMYK	cmyk(47.6%, 67%, 0%, 25.1%)
CIE-LAB	lab(37.89, 46.28, -61.75)
CIE-LCH	lch(37.89, 77.17, 306.85°)
OKLab	oklab(48.47% 0.0676 -0.1769)
OKLCH	oklch(48.47% 0.189 290.9)
XYZ	xyz(16.4344, 10.0253, 50.3493)
Luminance	0.1003 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 1.35

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643FBF #9ABF3F

analogous

#3F5ABF #643FBF #A43FBF

triadic

#643FBF #BF643F #3FBF64

tetradic

#643FBF #BF3F5A #9ABF3F #3FBFA4

square

#643FBF #BF3F5A #9ABF3F #3FBFA4

split-complementary

#643FBF #BFA43F #5ABF3F

monochromatic

#342163 #4C3091 #643FBF #896DCF #AE9BDE

Accessibility & contrast

On white

6.99

#643FBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#643FBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643FBF

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FBF	#FFFFFF	#000000	##FFFFFF
##643FBF	1.00	6.99	3.01	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC3

Deuteranopia (green-blind)

#0056BC

Tritanopia (blue-blind)

#475E7A

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #643fbf;
/* rgb */ color: rgb(100, 63, 191);
/* oklch */ color: oklch(48.5% 0.189 290.9);

Tailwind

colors: {
  custom: {
    50: '#9876d3',
    500: '#643fbf',
    950: '#000000',
  },
}

SCSS

$custom: #643fbf;
$custom-light: #9876d3;
$custom-dark: #000000;

JSON

{
  "hex": "#643fbf",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 191
  },
  "hsl": {
    "h": 257.344,
    "s": 50.394,
    "l": 49.804
  },
  "oklch": {
    "l": 0.48465,
    "c": 0.18936,
    "h": 290.9
  },
  "luminance": 0.10026
}

Semantic roles & 50–950 ramp

primary

#643FBF

secondary

#B9CA90

accent

#DA4EB1

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0E0914

muted

#7E7B83

Preview Lab

Preview with #643FBF

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

Preview Lab → · Contrast checker → · Palette generator →