#643FCF#643FCF

#643FCF is a mid, highly saturated violet. Relative luminance 0.108; OKLCH L 49.8% C 0.208 H 288.2°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#643FCF
RGB	rgb(100, 63, 207)
HSL	hsl(255, 60%, 53%)
HSV	hsv(255, 70%, 81%)
CMYK	cmyk(51.7%, 69.6%, 0%, 18.8%)
CIE-LAB	lab(39.19, 50.80, -68.94)
CIE-LCH	lch(39.19, 85.63, 306.39°)
OKLab	oklab(49.8% 0.065 -0.198)
OKLCH	oklch(49.8% 0.208 288.2)
XYZ	xyz(18.2922, 10.7685, 60.1341)
Luminance	0.1077 (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

#643FCF #AACF3F

analogous

#3F62CF #643FCF #AC3FCF

triadic

#643FCF #CF643F #3FCF64

tetradic

#643FCF #CF3F62 #AACF3F #3FCFAC

square

#643FCF #CF3F62 #AACF3F #3FCFAC

split-complementary

#643FCF #CFAC3F #62CF3F

monochromatic

#341E76 #4A2AA7 #643FCF #8C70DB #B3A1E7

Accessibility & contrast

On white

6.66

#643FCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#643FCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #643FCF

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643FCF	#FFFFFF	#000000	##FFFFFF
##643FCF	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FD3

Deuteranopia (green-blind)

#0058CC

Tritanopia (blue-blind)

#3C6482

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #643fcf;
/* rgb */ color: rgb(100, 63, 207);
/* oklch */ color: oklch(49.8% 0.208 288.2);

Tailwind

colors: {
  custom: {
    50: '#9a77df',
    500: '#643fcf',
    950: '#000000',
  },
}

SCSS

$custom: #643fcf;
$custom-light: #9a77df;
$custom-dark: #000000;

JSON

{
  "hex": "#643fcf",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 207
  },
  "hsl": {
    "h": 255.417,
    "s": 60,
    "l": 52.941
  },
  "oklch": {
    "l": 0.49799,
    "c": 0.2084,
    "h": 288.2
  },
  "luminance": 0.10769
}

Semantic roles & 50–950 ramp

primary

#643FCF

secondary

#C4D496

accent

#E345BA

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #643FCF

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

Preview Lab → · Contrast checker → · Palette generator →