#643ECB#643ECB

#643ECB is a mid, highly saturated violet. Relative luminance 0.105; OKLCH L 49.3% C 0.205 H 289.0°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#643ECB
RGB	rgb(100, 62, 203)
HSL	hsl(256, 58%, 52%)
HSV	hsv(256, 69%, 80%)
CMYK	cmyk(50.7%, 69.5%, 0%, 20.4%)
CIE-LAB	lab(38.67, 50.19, -67.48)
CIE-LCH	lch(38.67, 84.10, 306.64°)
OKLab	oklab(49.32% 0.0666 -0.1937)
OKLCH	oklch(49.32% 0.205 289)
XYZ	xyz(17.7545, 10.4656, 57.5729)
Luminance	0.1047 (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

#643ECB #A5CB3E

analogous

#3E5FCB #643ECB #AA3ECB

triadic

#643ECB #CB643E #3ECB64

tetradic

#643ECB #CB3E5F #A5CB3E #3ECBAA

square

#643ECB #CB3E5F #A5CB3E #3ECBAA

split-complementary

#643ECB #CBAA3E #5FCB3E

monochromatic

#341E70 #4B2BA1 #643ECB #8B6ED8 #B19EE5

Accessibility & contrast

On white

6.79

#643ECB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#643ECB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643ECB

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643ECB	#FFFFFF	#000000	##FFFFFF
##643ECB	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ECF

Deuteranopia (green-blind)

#0057C8

Tritanopia (blue-blind)

#3F6280

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #643ecb;
/* rgb */ color: rgb(100, 62, 203);
/* oklch */ color: oklch(49.3% 0.205 289.0);

Tailwind

colors: {
  custom: {
    50: '#9976dc',
    500: '#643ecb',
    950: '#000000',
  },
}

SCSS

$custom: #643ecb;
$custom-light: #9976dc;
$custom-dark: #000000;

JSON

{
  "hex": "#643ecb",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 203
  },
  "hsl": {
    "h": 256.17,
    "s": 57.551,
    "l": 51.961
  },
  "oklch": {
    "l": 0.49323,
    "c": 0.20484,
    "h": 289
  },
  "luminance": 0.10466
}

Semantic roles & 50–950 ramp

primary

#643ECB

secondary

#C1D194

accent

#E147B7

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #643ECB

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

Preview Lab → · Contrast checker → · Palette generator →