#643E93#643E93

#643E93 is a mid, vivid violet. Relative luminance 0.083; OKLCH L 45.0% C 0.136 H 301.8°. Best body text is #FFFFFF at 7.92:1 contrast (WCAG AA passes).

Color values

HEX	#643E93
RGB	rgb(100, 62, 147)
HSL	hsl(267, 41%, 41%)
HSV	hsv(267, 58%, 58%)
CMYK	cmyk(32%, 57.8%, 0%, 42.4%)
CIE-LAB	lab(34.52, 34.76, -40.90)
CIE-LCH	lch(34.52, 53.67, 310.36°)
OKLab	oklab(45.02% 0.0717 -0.1156)
OKLCH	oklch(45.02% 0.136 301.8)
XYZ	xyz(12.2434, 8.2611, 28.5476)
Luminance	0.0826 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E93 #6D933E

analogous

#3E4293 #643E93 #8E3E93

triadic

#643E93 #93643E #3E9364

tetradic

#643E93 #933E42 #6D933E #3E938E

square

#643E93 #933E42 #6D933E #3E938E

split-complementary

#643E93 #938E3E #42933E

monochromatic

#291A3D #472C68 #643E93 #8256B8 #A281CA

Accessibility & contrast

On white

7.92

#643E93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#643E93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E93

7.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E93	#FFFFFF	#000000	##FFFFFF
##643E93	1.00	7.92	2.65	7.92
#FFFFFF	7.92	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A5196

Deuteranopia (green-blind)

#295191

Tritanopia (blue-blind)

#5B4F62

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #643e93;
/* rgb */ color: rgb(100, 62, 147);
/* oklch */ color: oklch(45.0% 0.136 301.8);

Tailwind

colors: {
  custom: {
    50: '#9375b3',
    500: '#643e93',
    950: '#000000',
  },
}

SCSS

$custom: #643e93;
$custom-light: #9375b3;
$custom-dark: #000000;

JSON

{
  "hex": "#643e93",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 147
  },
  "hsl": {
    "h": 266.824,
    "s": 40.67,
    "l": 40.98
  },
  "oklch": {
    "l": 0.4502,
    "c": 0.13607,
    "h": 301.8
  },
  "luminance": 0.08261
}

Semantic roles & 50–950 ramp

primary

#643E93

secondary

#9AB479

accent

#D1579A

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643E93

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

Preview Lab → · Contrast checker → · Palette generator →