#643F92#643F92

#643F92 is a mid, vivid violet. Relative luminance 0.083; OKLCH L 45.1% C 0.133 H 301.9°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#643F92
RGB	rgb(100, 63, 146)
HSL	hsl(267, 40%, 41%)
HSV	hsv(267, 57%, 57%)
CMYK	cmyk(31.5%, 56.8%, 0%, 42.7%)
CIE-LAB	lab(34.68, 33.91, -40.04)
CIE-LCH	lch(34.68, 52.47, 310.26°)
OKLab	oklab(45.12% 0.0704 -0.1131)
OKLCH	oklch(45.12% 0.133 301.9)
XYZ	xyz(12.2201, 8.3396, 28.1545)
Luminance	0.0834 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F92 #6D923F

analogous

#3F4392 #643F92 #8D3F92

triadic

#643F92 #92643F #3F9264

tetradic

#643F92 #923F43 #6D923F #3F928D

square

#643F92 #923F43 #6D923F #3F928D

split-complementary

#643F92 #928D3F #43923F

monochromatic

#291A3C #472D67 #643F92 #8257B7 #A282C9

Accessibility & contrast

On white

7.87

#643F92 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#643F92 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F92

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F92	#FFFFFF	#000000	##FFFFFF
##643F92	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E5195

Deuteranopia (green-blind)

#2B5190

Tritanopia (blue-blind)

#5B4F62

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #643f92;
/* rgb */ color: rgb(100, 63, 146);
/* oklch */ color: oklch(45.1% 0.133 301.9);

Tailwind

colors: {
  custom: {
    50: '#9375b2',
    500: '#643f92',
    950: '#000000',
  },
}

SCSS

$custom: #643f92;
$custom-light: #9375b2;
$custom-dark: #000000;

JSON

{
  "hex": "#643f92",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 146
  },
  "hsl": {
    "h": 266.747,
    "s": 39.713,
    "l": 40.98
  },
  "oklch": {
    "l": 0.45117,
    "c": 0.13318,
    "h": 301.9
  },
  "luminance": 0.0834
}

Semantic roles & 50–950 ramp

primary

#643F92

secondary

#9AB379

accent

#D0589A

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643F92

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

Preview Lab → · Contrast checker → · Palette generator →