#643FD7#643FD7

#643FD7 is a mid, highly saturated violet. Relative luminance 0.112; OKLCH L 50.5% C 0.218 H 286.9°. Best body text is #FFFFFF at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#643FD7
RGB	rgb(100, 63, 215)
HSL	hsl(255, 66%, 55%)
HSV	hsv(255, 71%, 84%)
CMYK	cmyk(53.5%, 70.7%, 0%, 15.7%)
CIE-LAB	lab(39.86, 53.06, -72.44)
CIE-LCH	lch(39.86, 89.80, 306.22°)
OKLab	oklab(50.49% 0.0635 -0.2083)
OKLCH	oklch(50.49% 0.218 286.9)
XYZ	xyz(19.2951, 11.1696, 65.4160)
Luminance	0.1117 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643FD7 #B2D73F

analogous

#3F66D7 #643FD7 #B03FD7

triadic

#643FD7 #D7643F #3FD764

tetradic

#643FD7 #D73F66 #B2D73F #3FD7B0

square

#643FD7 #D73F66 #B2D73F #3FD7B0

split-complementary

#643FD7 #D7B03F #66D73F

monochromatic

#341B81 #4825B3 #643FD7 #8D72E2 #B6A4EC

Accessibility & contrast

On white

6.49

#643FD7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#643FD7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643FD7

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FD7	#FFFFFF	#000000	##FFFFFF
##643FD7	1.00	6.49	3.23	6.49
#FFFFFF	6.49	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062DB

Deuteranopia (green-blind)

#005AD4

Tritanopia (blue-blind)

#346787

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #643fd7;
/* rgb */ color: rgb(100, 63, 215);
/* oklch */ color: oklch(50.5% 0.218 286.9);

Tailwind

colors: {
  custom: {
    50: '#9b77e4',
    500: '#643fd7',
    950: '#000000',
  },
}

SCSS

$custom: #643fd7;
$custom-light: #9b77e4;
$custom-dark: #000000;

JSON

{
  "hex": "#643fd7",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 215
  },
  "hsl": {
    "h": 254.605,
    "s": 65.517,
    "l": 54.51
  },
  "oklch": {
    "l": 0.50489,
    "c": 0.21773,
    "h": 286.9
  },
  "luminance": 0.11171
}

Semantic roles & 50–950 ramp

primary

#643FD7

secondary

#C9D999

accent

#E83FBF

background

#FAF7FE

surface

#F4EDFC

border

#CEC8D5

text

#0F0916

muted

#7F7B84

Preview Lab

Preview with #643FD7

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

Preview Lab → · Contrast checker → · Palette generator →