#643EC6#643EC6

#643EC6 is a mid, vivid violet. Relative luminance 0.102; OKLCH L 48.9% C 0.199 H 289.8°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#643EC6
RGB	rgb(100, 62, 198)
HSL	hsl(257, 54%, 51%)
HSV	hsv(257, 69%, 78%)
CMYK	cmyk(49.5%, 68.7%, 0%, 22.4%)
CIE-LAB	lab(38.25, 48.79, -65.24)
CIE-LCH	lch(38.25, 81.46, 306.79°)
OKLab	oklab(48.9% 0.0675 -0.1871)
OKLCH	oklch(48.9% 0.199 289.8)
XYZ	xyz(17.1683, 10.2311, 54.4853)
Luminance	0.1023 (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

#643EC6 #A0C63E

analogous

#3E5CC6 #643EC6 #A83EC6

triadic

#643EC6 #C6643E #3EC664

tetradic

#643EC6 #C63E5C #A0C63E #3EC6A8

square

#643EC6 #C63E5C #A0C63E #3EC6A8

split-complementary

#643EC6 #C6A83E #5CC63E

monochromatic

#341F6A #4C2D99 #643EC6 #8A6DD4 #B09CE2

Accessibility & contrast

On white

6.89

#643EC6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#643EC6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643EC6

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EC6	#FFFFFF	#000000	##FFFFFF
##643EC6	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DCA

Deuteranopia (green-blind)

#0057C3

Tritanopia (blue-blind)

#43607D

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #643ec6;
/* rgb */ color: rgb(100, 62, 198);
/* oklch */ color: oklch(48.9% 0.199 289.8);

Tailwind

colors: {
  custom: {
    50: '#9976d8',
    500: '#643ec6',
    950: '#000000',
  },
}

SCSS

$custom: #643ec6;
$custom-light: #9976d8;
$custom-dark: #000000;

JSON

{
  "hex": "#643ec6",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 198
  },
  "hsl": {
    "h": 256.765,
    "s": 54.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.48902,
    "c": 0.19894,
    "h": 289.8
  },
  "luminance": 0.10232
}

Semantic roles & 50–950 ramp

primary

#643EC6

secondary

#BDCE92

accent

#DE4AB4

background

#F9F7FD

surface

#F2EDFB

border

#CCC8D4

text

#0F0915

muted

#7E7B83

Preview Lab

Preview with #643EC6

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

Preview Lab → · Contrast checker → · Palette generator →