#643EA4#643EA4

#643EA4 is a mid, vivid violet. Relative luminance 0.088; OKLCH L 46.2% C 0.158 H 297.0°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#643EA4
RGB	rgb(100, 62, 164)
HSL	hsl(262, 45%, 44%)
HSV	hsv(262, 62%, 64%)
CMYK	cmyk(39%, 62.2%, 0%, 35.7%)
CIE-LAB	lab(35.66, 39.32, -49.35)
CIE-LCH	lch(35.66, 63.10, 308.55°)
OKLab	oklab(46.22% 0.0714 -0.1404)
OKLCH	oklch(46.22% 0.158 297)
XYZ	xyz(13.6773, 8.8347, 36.0994)
Luminance	0.0883 (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

#643EA4 #7EA43E

analogous

#3E4BA4 #643EA4 #973EA4

triadic

#643EA4 #A4643E #3EA464

tetradic

#643EA4 #A43E4B #7EA43E #3EA497

square

#643EA4 #A43E4B #7EA43E #3EA497

split-complementary

#643EA4 #A4973E #4BA43E

monochromatic

#2E1C4B #492D78 #643EA4 #835DC2 #A58AD3

Accessibility & contrast

On white

7.59

#643EA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#643EA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643EA4

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EA4	#FFFFFF	#000000	##FFFFFF
##643EA4	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A7

Deuteranopia (green-blind)

#0C53A2

Tritanopia (blue-blind)

#55546B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #643ea4;
/* rgb */ color: rgb(100, 62, 164);
/* oklch */ color: oklch(46.2% 0.158 297.0);

Tailwind

colors: {
  custom: {
    50: '#9575c0',
    500: '#643ea4',
    950: '#000000',
  },
}

SCSS

$custom: #643ea4;
$custom-light: #9575c0;
$custom-dark: #000000;

JSON

{
  "hex": "#643ea4",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 164
  },
  "hsl": {
    "h": 262.353,
    "s": 45.133,
    "l": 44.314
  },
  "oklch": {
    "l": 0.46221,
    "c": 0.15754,
    "h": 297
  },
  "luminance": 0.08835
}

Semantic roles & 50–950 ramp

primary

#643EA4

secondary

#A7BD81

accent

#D553A4

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643EA4

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

Preview Lab → · Contrast checker → · Palette generator →