#643DD3#643DD3

#643DD3 is a mid, highly saturated violet. Relative luminance 0.107; OKLCH L 49.9% C 0.215 H 287.8°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#643DD3
RGB	rgb(100, 61, 211)
HSL	hsl(256, 63%, 53%)
HSV	hsv(256, 71%, 83%)
CMYK	cmyk(52.6%, 71.1%, 0%, 17.3%)
CIE-LAB	lab(39.15, 52.96, -71.30)
CIE-LCH	lch(39.15, 88.82, 306.60°)
OKLab	oklab(49.88% 0.0659 -0.2049)
OKLCH	oklch(49.88% 0.215 287.8)
XYZ	xyz(18.6787, 10.7490, 62.7059)
Luminance	0.1075 (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

#643DD3 #ACD33D

analogous

#3D61D3 #643DD3 #AF3DD3

triadic

#643DD3 #D3643D #3DD364

tetradic

#643DD3 #D33D61 #ACD33D #3DD3AF

square

#643DD3 #D33D61 #ACD33D #3DD3AF

split-complementary

#643DD3 #D3AF3D #61D33D

monochromatic

#341C7A #4A27AC #643DD3 #8C6FDE #B4A1EA

Accessibility & contrast

On white

6.67

#643DD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#643DD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643DD3

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DD3	#FFFFFF	#000000	##FFFFFF
##643DD3	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)

#0060D7

Deuteranopia (green-blind)

#0058D0

Tritanopia (blue-blind)

#386584

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #643dd3;
/* rgb */ color: rgb(100, 61, 211);
/* oklch */ color: oklch(49.9% 0.215 287.8);

Tailwind

colors: {
  custom: {
    50: '#9b76e2',
    500: '#643dd3',
    950: '#000000',
  },
}

SCSS

$custom: #643dd3;
$custom-light: #9b76e2;
$custom-dark: #000000;

JSON

{
  "hex": "#643dd3",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 211
  },
  "hsl": {
    "h": 255.6,
    "s": 63.025,
    "l": 53.333
  },
  "oklch": {
    "l": 0.49879,
    "c": 0.21527,
    "h": 287.8
  },
  "luminance": 0.1075
}

Semantic roles & 50–950 ramp

primary

#643DD3

secondary

#C5D696

accent

#E642BB

background

#FAF7FE

surface

#F4EDFC

border

#CEC8D5

text

#0F0915

muted

#7F7B84

Preview Lab

Preview with #643DD3

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

Preview Lab → · Contrast checker → · Palette generator →