#663FCA#663FCA

#663FCA is a mid, highly saturated violet. Relative luminance 0.106; OKLCH L 49.6% C 0.202 H 289.8°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#663FCA
RGB	rgb(102, 63, 202)
HSL	hsl(257, 57%, 52%)
HSV	hsv(257, 69%, 79%)
CMYK	cmyk(49.5%, 68.8%, 0%, 20.8%)
CIE-LAB	lab(38.97, 49.72, -66.39)
CIE-LCH	lch(38.97, 82.94, 306.83°)
OKLab	oklab(49.57% 0.0687 -0.1904)
OKLCH	oklch(49.57% 0.202 289.8)
XYZ	xyz(17.9146, 10.6433, 56.9761)
Luminance	0.1064 (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

#663FCA #A3CA3F

analogous

#3F5DCA #663FCA #AC3FCA

triadic

#663FCA #CA663F #3FCA66

tetradic

#663FCA #CA3F5D #A3CA3F #3FCAAC

square

#663FCA #CA3F5D #A3CA3F #3FCAAC

split-complementary

#663FCA #CAAC3F #5DCA3F

monochromatic

#361F70 #4D2CA0 #663FCA #8C6FD7 #B29FE4

Accessibility & contrast

On white

6.71

#663FCA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#663FCA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663FCA

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663FCA	#FFFFFF	#000000	##FFFFFF
##663FCA	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)

#005ECE

Deuteranopia (green-blind)

#0058C7

Tritanopia (blue-blind)

#446280

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #663fca;
/* rgb */ color: rgb(102, 63, 202);
/* oklch */ color: oklch(49.6% 0.202 289.8);

Tailwind

colors: {
  custom: {
    50: '#9a77db',
    500: '#663fca',
    950: '#000000',
  },
}

SCSS

$custom: #663fca;
$custom-light: #9a77db;
$custom-dark: #000000;

JSON

{
  "hex": "#663fca",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 202
  },
  "hsl": {
    "h": 256.835,
    "s": 56.735,
    "l": 51.961
  },
  "oklch": {
    "l": 0.49565,
    "c": 0.20245,
    "h": 289.8
  },
  "luminance": 0.10644
}

Semantic roles & 50–950 ramp

primary

#663FCA

secondary

#C0D194

accent

#E048B5

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #663FCA

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

Preview Lab → · Contrast checker → · Palette generator →