#643CA0#643CA0

#643CA0 is a mid, vivid violet. Relative luminance 0.085; OKLCH L 45.6% C 0.155 H 298.4°. Best body text is #FFFFFF at 7.79:1 contrast (WCAG AA passes).

Color values

HEX	#643CA0
RGB	rgb(100, 60, 160)
HSL	hsl(264, 45%, 43%)
HSV	hsv(264, 63%, 63%)
CMYK	cmyk(37.5%, 62.5%, 0%, 37.3%)
CIE-LAB	lab(34.96, 39.37, -48.08)
CIE-LCH	lch(34.96, 62.14, 309.31°)
OKLab	oklab(45.62% 0.0741 -0.1367)
OKLCH	oklch(45.62% 0.155 298.4)
XYZ	xyz(13.2150, 8.4789, 34.1913)
Luminance	0.0848 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.77

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643CA0 #78A03C

analogous

#3C46A0 #643CA0 #963CA0

triadic

#643CA0 #A0643C #3CA064

tetradic

#643CA0 #A03C46 #78A03C #3CA096

square

#643CA0 #A03C46 #78A03C #3CA096

split-complementary

#643CA0 #A0963C #46A03C

monochromatic

#2C1B47 #482B73 #643CA0 #8259C1 #A485D1

Accessibility & contrast

On white

7.79

#643CA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#643CA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643CA0

7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CA0	#FFFFFF	#000000	##FFFFFF
##643CA0	1.00	7.79	2.70	7.79
#FFFFFF	7.79	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A3

Deuteranopia (green-blind)

#11519E

Tritanopia (blue-blind)

#565268

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #643ca0;
/* rgb */ color: rgb(100, 60, 160);
/* oklch */ color: oklch(45.6% 0.155 298.4);

Tailwind

colors: {
  custom: {
    50: '#9474bd',
    500: '#643ca0',
    950: '#000000',
  },
}

SCSS

$custom: #643ca0;
$custom-light: #9474bd;
$custom-dark: #000000;

JSON

{
  "hex": "#643ca0",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 160
  },
  "hsl": {
    "h": 264,
    "s": 45.455,
    "l": 43.137
  },
  "oklch": {
    "l": 0.4562,
    "c": 0.15546,
    "h": 298.4
  },
  "luminance": 0.08479
}

Semantic roles & 50–950 ramp

primary

#643CA0

secondary

#A2BB7C

accent

#D553A1

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643CA0

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

Preview Lab → · Contrast checker → · Palette generator →