#643EC7#643EC7

#643EC7 is a mid, highly saturated violet. Relative luminance 0.103; OKLCH L 49.0% C 0.200 H 289.6°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#643EC7
RGB	rgb(100, 62, 199)
HSL	hsl(257, 55%, 51%)
HSV	hsv(257, 69%, 78%)
CMYK	cmyk(49.7%, 68.8%, 0%, 22%)
CIE-LAB	lab(38.34, 49.07, -65.69)
CIE-LCH	lch(38.34, 81.99, 306.76°)
OKLab	oklab(48.99% 0.0673 -0.1885)
OKLCH	oklch(48.99% 0.2 289.6)
XYZ	xyz(17.2840, 10.2774, 55.0948)
Luminance	0.1028 (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

#643EC7 #A1C73E

analogous

#3E5CC7 #643EC7 #A83EC7

triadic

#643EC7 #C7643E #3EC764

tetradic

#643EC7 #C73E5C #A1C73E #3EC7A8

square

#643EC7 #C73E5C #A1C73E #3EC7A8

split-complementary

#643EC7 #C7A83E #5CC73E

monochromatic

#341F6B #4B2D9B #643EC7 #8A6DD5 #B09DE3

Accessibility & contrast

On white

6.87

#643EC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#643EC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643EC7

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EC7	#FFFFFF	#000000	##FFFFFF
##643EC7	1.00	6.87	3.06	6.87
#FFFFFF	6.87	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DCB

Deuteranopia (green-blind)

#0057C4

Tritanopia (blue-blind)

#42617E

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #643ec7;
/* rgb */ color: rgb(100, 62, 199);
/* oklch */ color: oklch(49.0% 0.200 289.6);

Tailwind

colors: {
  custom: {
    50: '#9976d9',
    500: '#643ec7',
    950: '#000000',
  },
}

SCSS

$custom: #643ec7;
$custom-light: #9976d9;
$custom-dark: #000000;

JSON

{
  "hex": "#643ec7",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 199
  },
  "hsl": {
    "h": 256.642,
    "s": 55.02,
    "l": 51.176
  },
  "oklch": {
    "l": 0.48986,
    "c": 0.20012,
    "h": 289.6
  },
  "luminance": 0.10278
}

Semantic roles & 50–950 ramp

primary

#643EC7

secondary

#BECF92

accent

#DE49B5

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #643EC7

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

Preview Lab → · Contrast checker → · Palette generator →