#643CAF#643CAF

#643CAF is a mid, vivid violet. Relative luminance 0.090; OKLCH L 46.8% C 0.174 H 294.7°. Best body text is #FFFFFF at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#643CAF
RGB	rgb(100, 60, 175)
HSL	hsl(261, 49%, 46%)
HSV	hsv(261, 66%, 69%)
CMYK	cmyk(42.9%, 65.7%, 0%, 31.4%)
CIE-LAB	lab(36.05, 43.45, -55.29)
CIE-LCH	lch(36.05, 70.32, 308.17°)
OKLab	oklab(46.76% 0.0728 -0.1579)
OKLCH	oklch(46.76% 0.174 294.7)
XYZ	xyz(14.6072, 9.0358, 41.5236)
Luminance	0.0904 (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

#643CAF #87AF3C

analogous

#3C4DAF #643CAF #9D3CAF

triadic

#643CAF #AF643C #3CAF64

tetradic

#643CAF #AF3C4D #87AF3C #3CAF9D

square

#643CAF #AF3C4D #87AF3C #3CAF9D

split-complementary

#643CAF #AF9D3C #4DAF3C

monochromatic

#301D54 #4A2C81 #643CAF #8460C8 #A78DD8

Accessibility & contrast

On white

7.48

#643CAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#643CAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643CAF

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CAF	#FFFFFF	#000000	##FFFFFF
##643CAF	1.00	7.48	2.81	7.48
#FFFFFF	7.48	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B3

Deuteranopia (green-blind)

#0053AD

Tritanopia (blue-blind)

#505770

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #643caf;
/* rgb */ color: rgb(100, 60, 175);
/* oklch */ color: oklch(46.8% 0.174 294.7);

Tailwind

colors: {
  custom: {
    50: '#9674c8',
    500: '#643caf',
    950: '#000000',
  },
}

SCSS

$custom: #643caf;
$custom-light: #9674c8;
$custom-dark: #000000;

JSON

{
  "hex": "#643caf",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 175
  },
  "hsl": {
    "h": 260.87,
    "s": 48.936,
    "l": 46.078
  },
  "oklch": {
    "l": 0.46757,
    "c": 0.17386,
    "h": 294.7
  },
  "luminance": 0.09036
}

Semantic roles & 50–950 ramp

primary

#643CAF

secondary

#ADC384

accent

#D84FA9

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643CAF

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

Preview Lab → · Contrast checker → · Palette generator →