#643FC8#643FC8

#643FC8 is a mid, highly saturated violet. Relative luminance 0.104; OKLCH L 49.2% C 0.200 H 289.3°. Best body text is #FFFFFF at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#643FC8
RGB	rgb(100, 63, 200)
HSL	hsl(256, 55%, 52%)
HSV	hsv(256, 69%, 78%)
CMYK	cmyk(50%, 68.5%, 0%, 21.6%)
CIE-LAB	lab(38.61, 48.82, -65.82)
CIE-LCH	lch(38.61, 81.95, 306.56°)
OKLab	oklab(49.21% 0.0662 -0.1889)
OKLCH	oklch(49.21% 0.2 289.3)
XYZ	xyz(17.4554, 10.4337, 55.7266)
Luminance	0.1043 (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

#643FC8 #A3C83F

analogous

#3F5FC8 #643FC8 #A93FC8

triadic

#643FC8 #C8643F #3FC864

tetradic

#643FC8 #C83F5F #A3C83F #3FC8A9

square

#643FC8 #C83F5F #A3C83F #3FC8A9

split-complementary

#643FC8 #C8A93F #5FC83F

monochromatic

#341F6D #4B2D9D #643FC8 #8A6FD6 #B19EE3

Accessibility & contrast

On white

6.80

#643FC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#643FC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643FC8

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FC8	#FFFFFF	#000000	##FFFFFF
##643FC8	1.00	6.80	3.09	6.80
#FFFFFF	6.80	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ECC

Deuteranopia (green-blind)

#0058C5

Tritanopia (blue-blind)

#41627F

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #643fc8;
/* rgb */ color: rgb(100, 63, 200);
/* oklch */ color: oklch(49.2% 0.200 289.3);

Tailwind

colors: {
  custom: {
    50: '#9977da',
    500: '#643fc8',
    950: '#000000',
  },
}

SCSS

$custom: #643fc8;
$custom-light: #9977da;
$custom-dark: #000000;

JSON

{
  "hex": "#643fc8",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 200
  },
  "hsl": {
    "h": 256.204,
    "s": 55.466,
    "l": 51.569
  },
  "oklch": {
    "l": 0.49207,
    "c": 0.20012,
    "h": 289.3
  },
  "luminance": 0.10434
}

Semantic roles & 50–950 ramp

primary

#643FC8

secondary

#BFD093

accent

#DF49B6

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #643FC8

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

Preview Lab → · Contrast checker → · Palette generator →