#643CC7#643CC7

#643CC7 is a mid, highly saturated violet. Relative luminance 0.101; OKLCH L 48.7% C 0.202 H 290.0°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#643CC7
RGB	rgb(100, 60, 199)
HSL	hsl(257, 55%, 51%)
HSV	hsv(257, 70%, 78%)
CMYK	cmyk(49.7%, 69.8%, 0%, 22%)
CIE-LAB	lab(37.96, 50.12, -66.31)
CIE-LCH	lch(37.96, 83.12, 307.08°)
OKLab	oklab(48.72% 0.0691 -0.1903)
OKLCH	oklch(48.72% 0.202 290)
XYZ	xyz(17.1772, 10.0638, 55.0592)
Luminance	0.1007 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643CC7 #9FC73C

analogous

#3C59C7 #643CC7 #A93CC7

triadic

#643CC7 #C7643C #3CC764

tetradic

#643CC7 #C73C59 #9FC73C #3CC7A9

square

#643CC7 #C73C59 #9FC73C #3CC7A9

split-complementary

#643CC7 #C7A93C #59C73C

monochromatic

#341E6A #4C2C9A #643CC7 #8A6CD5 #B09BE2

Accessibility & contrast

On white

6.97

#643CC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#643CC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643CC7

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CC7	#FFFFFF	#000000	##FFFFFF
##643CC7	1.00	6.97	3.01	6.97
#FFFFFF	6.97	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCB

Deuteranopia (green-blind)

#0056C4

Tritanopia (blue-blind)

#42607D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #643cc7;
/* rgb */ color: rgb(100, 60, 199);
/* oklch */ color: oklch(48.7% 0.202 290.0);

Tailwind

colors: {
  custom: {
    50: '#9975d9',
    500: '#643cc7',
    950: '#000000',
  },
}

SCSS

$custom: #643cc7;
$custom-light: #9975d9;
$custom-dark: #000000;

JSON

{
  "hex": "#643cc7",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 199
  },
  "hsl": {
    "h": 257.266,
    "s": 55.378,
    "l": 50.784
  },
  "oklch": {
    "l": 0.48715,
    "c": 0.20245,
    "h": 290
  },
  "luminance": 0.10065
}

Semantic roles & 50–950 ramp

primary

#643CC7

secondary

#BCCE91

accent

#DF49B4

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0815

muted

#7F7B83

Preview Lab

Preview with #643CC7

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

Preview Lab → · Contrast checker → · Palette generator →