#643EC1#643EC1

#643EC1 is a mid, vivid violet. Relative luminance 0.100; OKLCH L 48.5% C 0.193 H 290.7°. Best body text is #FFFFFF at 7.00:1 contrast (WCAG AA passes).

Color values

HEX	#643EC1
RGB	rgb(100, 62, 193)
HSL	hsl(257, 51%, 50%)
HSV	hsv(257, 68%, 76%)
CMYK	cmyk(48.2%, 67.9%, 0%, 24.3%)
CIE-LAB	lab(37.85, 47.38, -62.98)
CIE-LCH	lch(37.85, 78.81, 306.95°)
OKLab	oklab(48.49% 0.0683 -0.1805)
OKLCH	oklch(48.49% 0.193 290.7)
XYZ	xyz(16.6011, 10.0042, 51.4980)
Luminance	0.1001 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 1.23

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643EC1 #9BC13E

analogous

#3E59C1 #643EC1 #A63EC1

triadic

#643EC1 #C1643E #3EC164

tetradic

#643EC1 #C13E59 #9BC13E #3EC1A6

square

#643EC1 #C13E59 #9BC13E #3EC1A6

split-complementary

#643EC1 #C1A63E #59C13E

monochromatic

#342064 #4C2F93 #643EC1 #896CD0 #AE9BDF

Accessibility & contrast

On white

7.00

#643EC1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#643EC1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643EC1

7.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EC1	#FFFFFF	#000000	##FFFFFF
##643EC1	1.00	7.00	3.00	7.00
#FFFFFF	7.00	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC5

Deuteranopia (green-blind)

#0056BE

Tritanopia (blue-blind)

#465F7A

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #643ec1;
/* rgb */ color: rgb(100, 62, 193);
/* oklch */ color: oklch(48.5% 0.193 290.7);

Tailwind

colors: {
  custom: {
    50: '#9876d5',
    500: '#643ec1',
    950: '#000000',
  },
}

SCSS

$custom: #643ec1;
$custom-light: #9876d5;
$custom-dark: #000000;

JSON

{
  "hex": "#643ec1",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 193
  },
  "hsl": {
    "h": 257.405,
    "s": 51.373,
    "l": 50
  },
  "oklch": {
    "l": 0.48487,
    "c": 0.19299,
    "h": 290.7
  },
  "luminance": 0.10005
}

Semantic roles & 50–950 ramp

primary

#643EC1

secondary

#BACB90

accent

#DB4DB2

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0914

muted

#7E7B83

Preview Lab

Preview with #643EC1

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

Preview Lab → · Contrast checker → · Palette generator →