#643DCD#643DCD

#643DCD is a mid, highly saturated violet. Relative luminance 0.105; OKLCH L 49.4% C 0.208 H 288.8°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#643DCD
RGB	rgb(100, 61, 205)
HSL	hsl(256, 59%, 52%)
HSV	hsv(256, 70%, 80%)
CMYK	cmyk(51.2%, 70.2%, 0%, 19.6%)
CIE-LAB	lab(38.64, 51.28, -68.67)
CIE-LCH	lch(38.64, 85.70, 306.75°)
OKLab	oklab(49.36% 0.0671 -0.1972)
OKLCH	oklch(49.36% 0.208 288.8)
XYZ	xyz(17.9405, 10.4538, 58.8182)
Luminance	0.1046 (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

#643DCD #A6CD3D

analogous

#3D5ECD #643DCD #AC3DCD

triadic

#643DCD #CD643D #3DCD64

tetradic

#643DCD #CD3D5E #A6CD3D #3DCDAC

square

#643DCD #CD3D5E #A6CD3D #3DCDAC

split-complementary

#643DCD #CDAC3D #5ECD3D

monochromatic

#341D72 #4B2AA3 #643DCD #8B6EDA #B29EE6

Accessibility & contrast

On white

6.79

#643DCD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#643DCD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643DCD

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DCD	#FFFFFF	#000000	##FFFFFF
##643DCD	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED1

Deuteranopia (green-blind)

#0057CA

Tritanopia (blue-blind)

#3D6381

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #643dcd;
/* rgb */ color: rgb(100, 61, 205);
/* oklch */ color: oklch(49.4% 0.208 288.8);

Tailwind

colors: {
  custom: {
    50: '#9a76dd',
    500: '#643dcd',
    950: '#000000',
  },
}

SCSS

$custom: #643dcd;
$custom-light: #9a76dd;
$custom-dark: #000000;

JSON

{
  "hex": "#643dcd",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 205
  },
  "hsl": {
    "h": 256.25,
    "s": 59.016,
    "l": 52.157
  },
  "oklch": {
    "l": 0.4936,
    "c": 0.20831,
    "h": 288.8
  },
  "luminance": 0.10455
}

Semantic roles & 50–950 ramp

primary

#643DCD

secondary

#C1D293

accent

#E246B8

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #643DCD

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

Preview Lab → · Contrast checker → · Palette generator →