#643DD1#643DD1

#643DD1 is a mid, highly saturated violet. Relative luminance 0.106; OKLCH L 49.7% C 0.213 H 288.1°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#643DD1
RGB	rgb(100, 61, 209)
HSL	hsl(256, 62%, 53%)
HSV	hsv(256, 71%, 82%)
CMYK	cmyk(52.2%, 70.8%, 0%, 18%)
CIE-LAB	lab(38.98, 52.40, -70.43)
CIE-LCH	lch(38.98, 87.78, 306.65°)
OKLab	oklab(49.71% 0.0663 -0.2024)
OKLCH	oklch(49.71% 0.213 288.1)
XYZ	xyz(18.4295, 10.6494, 61.3937)
Luminance	0.1065 (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

#643DD1 #AAD13D

analogous

#3D60D1 #643DD1 #AE3DD1

triadic

#643DD1 #D1643D #3DD164

tetradic

#643DD1 #D13D60 #AAD13D #3DD1AE

square

#643DD1 #D13D60 #AAD13D #3DD1AE

split-complementary

#643DD1 #D1AE3D #60D13D

monochromatic

#341C77 #4A28A9 #643DD1 #8C6EDD #B3A0E8

Accessibility & contrast

On white

6.71

#643DD1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#643DD1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643DD1

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DD1	#FFFFFF	#000000	##FFFFFF
##643DD1	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FD5

Deuteranopia (green-blind)

#0058CE

Tritanopia (blue-blind)

#3A6483

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #643dd1;
/* rgb */ color: rgb(100, 61, 209);
/* oklch */ color: oklch(49.7% 0.213 288.1);

Tailwind

colors: {
  custom: {
    50: '#9a76e0',
    500: '#643dd1',
    950: '#000000',
  },
}

SCSS

$custom: #643dd1;
$custom-light: #9a76e0;
$custom-dark: #000000;

JSON

{
  "hex": "#643dd1",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 209
  },
  "hsl": {
    "h": 255.811,
    "s": 61.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.49705,
    "c": 0.21296,
    "h": 288.1
  },
  "luminance": 0.1065
}

Semantic roles & 50–950 ramp

primary

#643DD1

secondary

#C4D595

accent

#E543BA

background

#FAF7FD

surface

#F4EDFB

border

#CEC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #643DD1

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

Preview Lab → · Contrast checker → · Palette generator →