#643DB8#643DB8

#643DB8 is a mid, vivid violet. Relative luminance 0.095; OKLCH L 47.6% C 0.183 H 292.6°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#643DB8
RGB	rgb(100, 61, 184)
HSL	hsl(259, 50%, 48%)
HSV	hsv(259, 67%, 72%)
CMYK	cmyk(45.7%, 66.8%, 0%, 27.8%)
CIE-LAB	lab(36.94, 45.40, -59.17)
CIE-LCH	lch(36.94, 74.58, 307.50°)
OKLab	oklab(47.61% 0.0706 -0.1693)
OKLCH	oklch(47.61% 0.183 292.6)
XYZ	xyz(15.5736, 9.5070, 46.3526)
Luminance	0.0951 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.50

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643DB8 #91B83D

analogous

#3D54B8 #643DB8 #A13DB8

triadic

#643DB8 #B8643D #3DB864

tetradic

#643DB8 #B83D54 #91B83D #3DB8A1

square

#643DB8 #B83D54 #91B83D #3DB8A1

split-complementary

#643DB8 #B8A13D #54B83D

monochromatic

#321F5C #4B2E8A #643DB8 #8666CC #AB94DB

Accessibility & contrast

On white

7.24

#643DB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#643DB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643DB8

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DB8	#FFFFFF	#000000	##FFFFFF
##643DB8	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BC

Deuteranopia (green-blind)

#0055B5

Tritanopia (blue-blind)

#4B5B75

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #643db8;
/* rgb */ color: rgb(100, 61, 184);
/* oklch */ color: oklch(47.6% 0.183 292.6);

Tailwind

colors: {
  custom: {
    50: '#9775ce',
    500: '#643db8',
    950: '#000000',
  },
}

SCSS

$custom: #643db8;
$custom-light: #9775ce;
$custom-dark: #000000;

JSON

{
  "hex": "#643db8",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 184
  },
  "hsl": {
    "h": 259.024,
    "s": 50.204,
    "l": 48.039
  },
  "oklch": {
    "l": 0.47614,
    "c": 0.18344,
    "h": 292.6
  },
  "luminance": 0.09508
}

Semantic roles & 50–950 ramp

primary

#643DB8

secondary

#B4C78A

accent

#DA4EAD

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #643DB8

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

Preview Lab → · Contrast checker → · Palette generator →