#643FDC#643FDC

#643FDC is a mid, highly saturated violet. Relative luminance 0.114; OKLCH L 50.9% C 0.224 H 286.2°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#643FDC
RGB	rgb(100, 63, 220)
HSL	hsl(254, 69%, 55%)
HSV	hsv(254, 71%, 86%)
CMYK	cmyk(54.5%, 71.4%, 0%, 13.7%)
CIE-LAB	lab(40.30, 54.48, -74.60)
CIE-LCH	lch(40.30, 92.38, 306.14°)
OKLab	oklab(50.93% 0.0624 -0.2146)
OKLCH	oklch(50.93% 0.224 286.2)
XYZ	xyz(19.9474, 11.4305, 68.8515)
Luminance	0.1143 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643FDC #B7DC3F

analogous

#3F68DC #643FDC #B23FDC

triadic

#643FDC #DC643F #3FDC64

tetradic

#643FDC #DC3F68 #B7DC3F #3FDCB2

square

#643FDC #DC3F68 #B7DC3F #3FDCB2

split-complementary

#643FDC #DCB23F #68DC3F

monochromatic

#331988 #4622BC #643FDC #8E73E5 #B8A7EF

Accessibility & contrast

On white

6.39

#643FDC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#643FDC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643FDC

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FDC	#FFFFFF	#000000	##FFFFFF
##643FDC	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063E1

Deuteranopia (green-blind)

#005AD9

Tritanopia (blue-blind)

#2F698A

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #643fdc;
/* rgb */ color: rgb(100, 63, 220);
/* oklch */ color: oklch(50.9% 0.224 286.2);

Tailwind

colors: {
  custom: {
    50: '#9c77e8',
    500: '#643fdc',
    950: '#000000',
  },
}

SCSS

$custom: #643fdc;
$custom-light: #9c77e8;
$custom-dark: #000000;

JSON

{
  "hex": "#643fdc",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 220
  },
  "hsl": {
    "h": 254.14,
    "s": 69.163,
    "l": 55.49
  },
  "oklch": {
    "l": 0.50928,
    "c": 0.22351,
    "h": 286.2
  },
  "luminance": 0.11432
}

Semantic roles & 50–950 ramp

primary

#643FDC

secondary

#CDDC9B

accent

#EC3CC2

background

#FAF7FE

surface

#F4EDFD

border

#CEC8D5

text

#0F0916

muted

#7F7B84

Preview Lab

Preview with #643FDC

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

Preview Lab → · Contrast checker → · Palette generator →