#643CD5#643CD5

#643CD5 is a mid, highly saturated violet. Relative luminance 0.107; OKLCH L 49.9% C 0.219 H 287.7°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#643CD5
RGB	rgb(100, 60, 213)
HSL	hsl(256, 65%, 54%)
HSV	hsv(256, 72%, 84%)
CMYK	cmyk(53.1%, 71.8%, 0%, 16.5%)
CIE-LAB	lab(39.15, 54.03, -72.47)
CIE-LCH	lch(39.15, 90.39, 306.71°)
OKLab	oklab(49.93% 0.0663 -0.2083)
OKLCH	oklch(49.93% 0.219 287.7)
XYZ	xyz(18.8781, 10.7442, 64.0170)
Luminance	0.1075 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 3.24

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643CD5 #ADD53C

analogous

#3C60D5 #643CD5 #B03CD5

triadic

#643CD5 #D5643C #3CD564

tetradic

#643CD5 #D53C60 #ADD53C #3CD5B0

square

#643CD5 #D53C60 #ADD53C #3CD5B0

split-complementary

#643CD5 #D5B03C #60D53C

monochromatic

#341B7C #4926AE #643CD5 #8C6EE0 #B4A1EB

Accessibility & contrast

On white

6.67

#643CD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#643CD5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643CD5

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CD5	#FFFFFF	#000000	##FFFFFF
##643CD5	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060D9

Deuteranopia (green-blind)

#0058D2

Tritanopia (blue-blind)

#376585

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #643cd5;
/* rgb */ color: rgb(100, 60, 213);
/* oklch */ color: oklch(49.9% 0.219 287.7);

Tailwind

colors: {
  custom: {
    50: '#9b75e3',
    500: '#643cd5',
    950: '#000000',
  },
}

SCSS

$custom: #643cd5;
$custom-light: #9b75e3;
$custom-dark: #000000;

JSON

{
  "hex": "#643cd5",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 213
  },
  "hsl": {
    "h": 255.686,
    "s": 64.557,
    "l": 53.529
  },
  "oklch": {
    "l": 0.49927,
    "c": 0.21865,
    "h": 287.7
  },
  "luminance": 0.10745
}

Semantic roles & 50–950 ramp

primary

#643CD5

secondary

#C6D796

accent

#E840BC

background

#FAF7FE

surface

#F4EDFC

border

#CEC8D5

text

#0F0916

muted

#7F7B84

Preview Lab

Preview with #643CD5

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

Preview Lab → · Contrast checker → · Palette generator →