#663ECC#663ECC

#663ECC is a mid, highly saturated violet. Relative luminance 0.106; OKLCH L 49.6% C 0.206 H 289.6°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#663ECC
RGB	rgb(102, 62, 204)
HSL	hsl(257, 58%, 52%)
HSV	hsv(257, 70%, 80%)
CMYK	cmyk(50%, 69.6%, 0%, 20%)
CIE-LAB	lab(38.95, 50.81, -67.59)
CIE-LCH	lch(38.95, 84.55, 306.93°)
OKLab	oklab(49.6% 0.0692 -0.194)
OKLCH	oklch(49.6% 0.206 289.6)
XYZ	xyz(18.0981, 10.6289, 58.2130)
Luminance	0.1063 (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

#663ECC #A4CC3E

analogous

#3E5DCC #663ECC #AD3ECC

triadic

#663ECC #CC663E #3ECC66

tetradic

#663ECC #CC3E5D #A4CC3E #3ECCAD

square

#663ECC #CC3E5D #A4CC3E #3ECCAD

split-complementary

#663ECC #CCAD3E #5DCC3E

monochromatic

#361E72 #4C2BA2 #663ECC #8C6ED9 #B39FE6

Accessibility & contrast

On white

6.72

#663ECC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#663ECC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663ECC

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663ECC	#FFFFFF	#000000	##FFFFFF
##663ECC	1.00	6.72	3.13	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED0

Deuteranopia (green-blind)

#0058C9

Tritanopia (blue-blind)

#426380

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #663ecc;
/* rgb */ color: rgb(102, 62, 204);
/* oklch */ color: oklch(49.6% 0.206 289.6);

Tailwind

colors: {
  custom: {
    50: '#9b76dd',
    500: '#663ecc',
    950: '#000000',
  },
}

SCSS

$custom: #663ecc;
$custom-light: #9b76dd;
$custom-dark: #000000;

JSON

{
  "hex": "#663ecc",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 204
  },
  "hsl": {
    "h": 256.901,
    "s": 58.197,
    "l": 52.157
  },
  "oklch": {
    "l": 0.49598,
    "c": 0.20595,
    "h": 289.6
  },
  "luminance": 0.1063
}

Semantic roles & 50–950 ramp

primary

#663ECC

secondary

#C0D294

accent

#E146B6

background

#FAF7FD

surface

#F4EDFB

border

#CEC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #663ECC

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

Preview Lab → · Contrast checker → · Palette generator →