#643FAF#643FAF

#643FAF is a mid, vivid violet. Relative luminance 0.094; OKLCH L 47.2% C 0.170 H 294.1°. Best body text is #FFFFFF at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#643FAF
RGB	rgb(100, 63, 175)
HSL	hsl(260, 47%, 47%)
HSV	hsv(260, 64%, 69%)
CMYK	cmyk(42.9%, 64%, 0%, 31.4%)
CIE-LAB	lab(36.67, 41.79, -54.29)
CIE-LCH	lch(36.67, 68.52, 307.59°)
OKLab	oklab(47.2% 0.0694 -0.155)
OKLCH	oklch(47.2% 0.17 294.1)
XYZ	xyz(14.7688, 9.3591, 41.5775)
Luminance	0.0936 (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

#643FAF #8AAF3F

analogous

#3F52AF #643FAF #9C3FAF

triadic

#643FAF #AF643F #3FAF64

tetradic

#643FAF #AF3F52 #8AAF3F #3FAF9C

square

#643FAF #AF3F52 #8AAF3F #3FAF9C

split-complementary

#643FAF #AF9C3F #52AF3F

monochromatic

#311F55 #4A2F82 #643FAF #8564C7 #A891D7

Accessibility & contrast

On white

7.31

#643FAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#643FAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643FAF

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FAF	#FFFFFF	#000000	##FFFFFF
##643FAF	1.00	7.31	2.87	7.31
#FFFFFF	7.31	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B3

Deuteranopia (green-blind)

#0054AD

Tritanopia (blue-blind)

#505971

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #643faf;
/* rgb */ color: rgb(100, 63, 175);
/* oklch */ color: oklch(47.2% 0.170 294.1);

Tailwind

colors: {
  custom: {
    50: '#9676c8',
    500: '#643faf',
    950: '#000000',
  },
}

SCSS

$custom: #643faf;
$custom-light: #9676c8;
$custom-dark: #000000;

JSON

{
  "hex": "#643faf",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 175
  },
  "hsl": {
    "h": 259.821,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.472,
    "c": 0.16982,
    "h": 294.1
  },
  "luminance": 0.09359
}

Semantic roles & 50–950 ramp

primary

#643FAF

secondary

#AFC387

accent

#D751AB

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0913

muted

#7E7B82

Preview Lab

Preview with #643FAF

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

Preview Lab → · Contrast checker → · Palette generator →