#643EA5#643EA5

#643EA5 is a mid, vivid violet. Relative luminance 0.089; OKLCH L 46.3% C 0.159 H 296.7°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#643EA5
RGB	rgb(100, 62, 165)
HSL	hsl(262, 45%, 45%)
HSV	hsv(262, 62%, 65%)
CMYK	cmyk(39.4%, 62.4%, 0%, 35.3%)
CIE-LAB	lab(35.73, 39.60, -49.83)
CIE-LCH	lch(35.73, 63.65, 308.47°)
OKLab	oklab(46.29% 0.0714 -0.1419)
OKLCH	oklch(46.29% 0.159 296.7)
XYZ	xyz(13.7679, 8.8709, 36.5769)
Luminance	0.0887 (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

#643EA5 #7FA53E

analogous

#3E4CA5 #643EA5 #983EA5

triadic

#643EA5 #A5643E #3EA564

tetradic

#643EA5 #A53E4C #7FA53E #3EA598

square

#643EA5 #A53E4C #7FA53E #3EA598

split-complementary

#643EA5 #A5983E #4CA53E

monochromatic

#2E1D4C #492D79 #643EA5 #835EC2 #A58AD3

Accessibility & contrast

On white

7.57

#643EA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#643EA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643EA5

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EA5	#FFFFFF	#000000	##FFFFFF
##643EA5	1.00	7.57	2.77	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055A8

Deuteranopia (green-blind)

#0853A3

Tritanopia (blue-blind)

#54556B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #643ea5;
/* rgb */ color: rgb(100, 62, 165);
/* oklch */ color: oklch(46.3% 0.159 296.7);

Tailwind

colors: {
  custom: {
    50: '#9575c0',
    500: '#643ea5',
    950: '#000000',
  },
}

SCSS

$custom: #643ea5;
$custom-light: #9575c0;
$custom-dark: #000000;

JSON

{
  "hex": "#643ea5",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 165
  },
  "hsl": {
    "h": 262.136,
    "s": 45.374,
    "l": 44.51
  },
  "oklch": {
    "l": 0.46295,
    "c": 0.15879,
    "h": 296.7
  },
  "luminance": 0.08871
}

Semantic roles & 50–950 ramp

primary

#643EA5

secondary

#A7BE81

accent

#D553A5

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643EA5

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

Preview Lab → · Contrast checker → · Palette generator →