#643DB2#643DB2

#643DB2 is a mid, vivid violet. Relative luminance 0.093; OKLCH L 47.1% C 0.176 H 293.9°. Best body text is #FFFFFF at 7.36:1 contrast (WCAG AA passes).

Color values

HEX	#643DB2
RGB	rgb(100, 61, 178)
HSL	hsl(260, 49%, 47%)
HSV	hsv(260, 66%, 70%)
CMYK	cmyk(43.8%, 65.7%, 0%, 30.2%)
CIE-LAB	lab(36.48, 43.73, -56.37)
CIE-LCH	lch(36.48, 71.35, 307.80°)
OKLab	oklab(47.14% 0.0713 -0.1611)
OKLCH	oklch(47.14% 0.176 293.9)
XYZ	xyz(14.9580, 9.2608, 43.1102)
Luminance	0.0926 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 3.35

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643DB2 #8BB23D

analogous

#3D51B2 #643DB2 #9F3DB2

triadic

#643DB2 #B2643D #3DB264

tetradic

#643DB2 #B23D51 #8BB23D #3DB29F

square

#643DB2 #B23D51 #8BB23D #3DB29F

split-complementary

#643DB2 #B29F3D #51B23D

monochromatic

#311E57 #4A2D84 #643DB2 #8563C9 #A990D9

Accessibility & contrast

On white

7.36

#643DB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#643DB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643DB2

7.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DB2	#FFFFFF	#000000	##FFFFFF
##643DB2	1.00	7.36	2.85	7.36
#FFFFFF	7.36	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B6

Deuteranopia (green-blind)

#0054B0

Tritanopia (blue-blind)

#4E5972

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #643db2;
/* rgb */ color: rgb(100, 61, 178);
/* oklch */ color: oklch(47.1% 0.176 293.9);

Tailwind

colors: {
  custom: {
    50: '#9675ca',
    500: '#643db2',
    950: '#000000',
  },
}

SCSS

$custom: #643db2;
$custom-light: #9675ca;
$custom-dark: #000000;

JSON

{
  "hex": "#643db2",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 178
  },
  "hsl": {
    "h": 260,
    "s": 48.954,
    "l": 46.863
  },
  "oklch": {
    "l": 0.47137,
    "c": 0.17618,
    "h": 293.9
  },
  "luminance": 0.09261
}

Semantic roles & 50–950 ramp

primary

#643DB2

secondary

#B0C487

accent

#D94FAB

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643DB2

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

Preview Lab → · Contrast checker → · Palette generator →