#643DC5#643DC5

#643DC5 is a mid, vivid violet. Relative luminance 0.101; OKLCH L 48.7% C 0.199 H 290.2°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#643DC5
RGB	rgb(100, 61, 197)
HSL	hsl(257, 54%, 51%)
HSV	hsv(257, 69%, 77%)
CMYK	cmyk(49.2%, 69%, 0%, 22.7%)
CIE-LAB	lab(37.98, 49.03, -65.10)
CIE-LCH	lch(37.98, 81.50, 306.99°)
OKLab	oklab(48.68% 0.0686 -0.1867)
OKLCH	oklch(48.68% 0.199 290.2)
XYZ	xyz(16.9994, 10.0773, 53.8619)
Luminance	0.1008 (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

#643DC5 #9EC53D

analogous

#3D5AC5 #643DC5 #A83DC5

triadic

#643DC5 #C5643D #3DC564

tetradic

#643DC5 #C53D5A #9EC53D #3DC5A8

square

#643DC5 #C53D5A #9EC53D #3DC5A8

split-complementary

#643DC5 #C5A83D #5AC53D

monochromatic

#341F68 #4C2D98 #643DC5 #8A6CD3 #AF9BE1

Accessibility & contrast

On white

6.96

#643DC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#643DC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643DC5

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DC5	#FFFFFF	#000000	##FFFFFF
##643DC5	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC9

Deuteranopia (green-blind)

#0056C2

Tritanopia (blue-blind)

#43607C

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #643dc5;
/* rgb */ color: rgb(100, 61, 197);
/* oklch */ color: oklch(48.7% 0.199 290.2);

Tailwind

colors: {
  custom: {
    50: '#9975d8',
    500: '#643dc5',
    950: '#000000',
  },
}

SCSS

$custom: #643dc5;
$custom-light: #9975d8;
$custom-dark: #000000;

JSON

{
  "hex": "#643dc5",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 197
  },
  "hsl": {
    "h": 257.206,
    "s": 53.968,
    "l": 50.588
  },
  "oklch": {
    "l": 0.48681,
    "c": 0.19893,
    "h": 290.2
  },
  "luminance": 0.10078
}

Semantic roles & 50–950 ramp

primary

#643DC5

secondary

#BCCD91

accent

#DD4AB3

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0915

muted

#7E7B83

Preview Lab

Preview with #643DC5

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

Preview Lab → · Contrast checker → · Palette generator →