#643CDF#643CDF

#643CDF is a mid, highly saturated violet. Relative luminance 0.113; OKLCH L 50.8% C 0.230 H 286.2°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#643CDF
RGB	rgb(100, 60, 223)
HSL	hsl(255, 72%, 55%)
HSV	hsv(255, 73%, 87%)
CMYK	cmyk(55.2%, 73.1%, 0%, 12.5%)
CIE-LAB	lab(40.03, 56.82, -76.76)
CIE-LCH	lch(40.03, 95.50, 306.51°)
OKLab	oklab(50.82% 0.0641 -0.2209)
OKLCH	oklch(50.82% 0.23 286.2)
XYZ	xyz(20.1867, 11.2676, 70.9089)
Luminance	0.1127 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643CDF #B7DF3C

analogous

#3C65DF #643CDF #B53CDF

triadic

#643CDF #DF643C #3CDF64

tetradic

#643CDF #DF3C65 #B7DF3C #3CDFB5

square

#643CDF #DF3C65 #B7DF3C #3CDFB5

split-complementary

#643CDF #DFB53C #65DF3C

monochromatic

#33178A #461FBF #643CDF #8E71E8 #B8A5F0

Accessibility & contrast

On white

6.45

#643CDF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#643CDF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643CDF

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CDF	#FFFFFF	#000000	##FFFFFF
##643CDF	1.00	6.45	3.25	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062E4

Deuteranopia (green-blind)

#005ADC

Tritanopia (blue-blind)

#2B698A

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #643cdf;
/* rgb */ color: rgb(100, 60, 223);
/* oklch */ color: oklch(50.8% 0.230 286.2);

Tailwind

colors: {
  custom: {
    50: '#9c76ea',
    500: '#643cdf',
    950: '#000000',
  },
}

SCSS

$custom: #643cdf;
$custom-light: #9c76ea;
$custom-dark: #000000;

JSON

{
  "hex": "#643cdf",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 223
  },
  "hsl": {
    "h": 254.724,
    "s": 71.806,
    "l": 55.49
  },
  "oklch": {
    "l": 0.50819,
    "c": 0.23002,
    "h": 286.2
  },
  "luminance": 0.11269
}

Semantic roles & 50–950 ramp

primary

#643CDF

secondary

#CDDD99

accent

#EF39C2

background

#FAF7FE

surface

#F4EDFD

border

#CEC8D5

text

#100916

muted

#7F7B84

Preview Lab

Preview with #643CDF

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

Preview Lab → · Contrast checker → · Palette generator →