#643CA3#643CA3

#643CA3 is a mid, vivid violet. Relative luminance 0.086; OKLCH L 45.8% C 0.159 H 297.6°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#643CA3
RGB	rgb(100, 60, 163)
HSL	hsl(263, 46%, 44%)
HSV	hsv(263, 63%, 64%)
CMYK	cmyk(38.7%, 63.2%, 0%, 36.1%)
CIE-LAB	lab(35.17, 40.18, -49.54)
CIE-LCH	lch(35.17, 63.78, 309.04°)
OKLab	oklab(45.84% 0.0739 -0.141)
OKLCH	oklch(45.84% 0.159 297.6)
XYZ	xyz(13.4806, 8.5852, 35.5901)
Luminance	0.0858 (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

#643CA3 #7BA33C

analogous

#3C47A3 #643CA3 #973CA3

triadic

#643CA3 #A3643C #3CA364

tetradic

#643CA3 #A33C47 #7BA33C #3CA397

square

#643CA3 #A33C47 #7BA33C #3CA397

split-complementary

#643CA3 #A3973C #47A33C

monochromatic

#2D1B4A #492C76 #643CA3 #825AC2 #A487D3

Accessibility & contrast

On white

7.73

#643CA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#643CA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643CA3

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CA3	#FFFFFF	#000000	##FFFFFF
##643CA3	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A6

Deuteranopia (green-blind)

#0752A1

Tritanopia (blue-blind)

#55536A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #643ca3;
/* rgb */ color: rgb(100, 60, 163);
/* oklch */ color: oklch(45.8% 0.159 297.6);

Tailwind

colors: {
  custom: {
    50: '#9574bf',
    500: '#643ca3',
    950: '#000000',
  },
}

SCSS

$custom: #643ca3;
$custom-light: #9574bf;
$custom-dark: #000000;

JSON

{
  "hex": "#643ca3",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 163
  },
  "hsl": {
    "h": 263.301,
    "s": 46.188,
    "l": 43.725
  },
  "oklch": {
    "l": 0.45842,
    "c": 0.15916,
    "h": 297.6
  },
  "luminance": 0.08585
}

Semantic roles & 50–950 ramp

primary

#643CA3

secondary

#A4BD7E

accent

#D652A3

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643CA3

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

Preview Lab → · Contrast checker → · Palette generator →