#643A9F#643A9F

#643A9F is a mid, vivid violet. Relative luminance 0.082; OKLCH L 45.2% C 0.157 H 299.1°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#643A9F
RGB	rgb(100, 58, 159)
HSL	hsl(265, 47%, 43%)
HSV	hsv(265, 64%, 62%)
CMYK	cmyk(37.1%, 63.5%, 0%, 37.6%)
CIE-LAB	lab(34.47, 40.22, -48.26)
CIE-LCH	lch(34.47, 62.82, 309.81°)
OKLab	oklab(45.25% 0.0765 -0.1372)
OKLCH	oklch(45.25% 0.157 299.1)
XYZ	xyz(13.0250, 8.2385, 33.6981)
Luminance	0.0824 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.95

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643A9F #759F3A

analogous

#3A439F #643A9F #963A9F

triadic

#643A9F #9F643A #3A9F64

tetradic

#643A9F #9F3A43 #759F3A #3A9F96

square

#643A9F #9F3A43 #759F3A #3A9F96

split-complementary

#643A9F #9F963A #439F3A

monochromatic

#2C1945 #482A72 #643A9F #8255C1 #A382D1

Accessibility & contrast

On white

7.93

#643A9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#643A9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643A9F

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643A9F	#FFFFFF	#000000	##FFFFFF
##643A9F	1.00	7.93	2.65	7.93
#FFFFFF	7.93	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051A2

Deuteranopia (green-blind)

#0D509D

Tritanopia (blue-blind)

#575067

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #643a9f;
/* rgb */ color: rgb(100, 58, 159);
/* oklch */ color: oklch(45.2% 0.157 299.1);

Tailwind

colors: {
  custom: {
    50: '#9472bc',
    500: '#643a9f',
    950: '#000000',
  },
}

SCSS

$custom: #643a9f;
$custom-light: #9472bc;
$custom-dark: #000000;

JSON

{
  "hex": "#643a9f",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 159
  },
  "hsl": {
    "h": 264.95,
    "s": 46.544,
    "l": 42.549
  },
  "oklch": {
    "l": 0.45245,
    "c": 0.15712,
    "h": 299.1
  },
  "luminance": 0.08239
}

Semantic roles & 50–950 ramp

primary

#643A9F

secondary

#A0BB7A

accent

#D6529F

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643A9F

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

Preview Lab → · Contrast checker → · Palette generator →