#643DB3#643DB3

#643DB3 is a mid, vivid violet. Relative luminance 0.093; OKLCH L 47.2% C 0.177 H 293.7°. Best body text is #FFFFFF at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#643DB3
RGB	rgb(100, 61, 179)
HSL	hsl(260, 49%, 47%)
HSV	hsv(260, 66%, 70%)
CMYK	cmyk(44.1%, 65.9%, 0%, 29.8%)
CIE-LAB	lab(36.56, 44.01, -56.84)
CIE-LCH	lch(36.56, 71.89, 307.75°)
OKLab	oklab(47.22% 0.0712 -0.1625)
OKLCH	oklch(47.22% 0.177 293.7)
XYZ	xyz(15.0587, 9.3011, 43.6410)
Luminance	0.0930 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 3.20

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643DB3 #8CB33D

analogous

#3D51B3 #643DB3 #9F3DB3

triadic

#643DB3 #B3643D #3DB364

tetradic

#643DB3 #B33D51 #8CB33D #3DB39F

square

#643DB3 #B33D51 #8CB33D #3DB39F

split-complementary

#643DB3 #B39F3D #51B33D

monochromatic

#311E58 #4B2D85 #643DB3 #8563CA #A991D9

Accessibility & contrast

On white

7.34

#643DB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#643DB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643DB3

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DB3	#FFFFFF	#000000	##FFFFFF
##643DB3	1.00	7.34	2.86	7.34
#FFFFFF	7.34	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B7

Deuteranopia (green-blind)

#0054B1

Tritanopia (blue-blind)

#4E5973

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #643db3;
/* rgb */ color: rgb(100, 61, 179);
/* oklch */ color: oklch(47.2% 0.177 293.7);

Tailwind

colors: {
  custom: {
    50: '#9675cb',
    500: '#643db3',
    950: '#000000',
  },
}

SCSS

$custom: #643db3;
$custom-light: #9675cb;
$custom-dark: #000000;

JSON

{
  "hex": "#643db3",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 179
  },
  "hsl": {
    "h": 259.831,
    "s": 49.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.47216,
    "c": 0.17739,
    "h": 293.7
  },
  "luminance": 0.09301
}

Semantic roles & 50–950 ramp

primary

#643DB3

secondary

#B0C587

accent

#D94FAB

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643DB3

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

Preview Lab → · Contrast checker → · Palette generator →