#663FAE#663FAE

#663FAE is a mid, vivid violet. Relative luminance 0.094; OKLCH L 47.3% C 0.169 H 295.4°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#663FAE
RGB	rgb(102, 63, 174)
HSL	hsl(261, 47%, 46%)
HSV	hsv(261, 64%, 68%)
CMYK	cmyk(41.4%, 63.8%, 0%, 31.8%)
CIE-LAB	lab(36.81, 41.94, -53.46)
CIE-LCH	lch(36.81, 67.95, 308.12°)
OKLab	oklab(47.33% 0.0723 -0.1524)
OKLCH	oklch(47.33% 0.169 295.4)
XYZ	xyz(14.8950, 9.4355, 41.0726)
Luminance	0.0944 (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

#663FAE #87AE3F

analogous

#3F50AE #663FAE #9E3FAE

triadic

#663FAE #AE663F #3FAE66

tetradic

#663FAE #AE3F50 #87AE3F #3FAE9E

square

#663FAE #AE3F50 #87AE3F #3FAE9E

split-complementary

#663FAE #AE9E3F #50AE3F

monochromatic

#311E54 #4C2F81 #663FAE #8664C7 #A990D7

Accessibility & contrast

On white

7.27

#663FAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#663FAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663FAE

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663FAE	#FFFFFF	#000000	##FFFFFF
##663FAE	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B1

Deuteranopia (green-blind)

#0055AC

Tritanopia (blue-blind)

#535871

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #663fae;
/* rgb */ color: rgb(102, 63, 174);
/* oklch */ color: oklch(47.3% 0.169 295.4);

Tailwind

colors: {
  custom: {
    50: '#9776c7',
    500: '#663fae',
    950: '#000000',
  },
}

SCSS

$custom: #663fae;
$custom-light: #9776c7;
$custom-dark: #000000;

JSON

{
  "hex": "#663fae",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 174
  },
  "hsl": {
    "h": 261.081,
    "s": 46.835,
    "l": 46.471
  },
  "oklch": {
    "l": 0.47331,
    "c": 0.16873,
    "h": 295.4
  },
  "luminance": 0.09436
}

Semantic roles & 50–950 ramp

primary

#663FAE

secondary

#ADC287

accent

#D651A8

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0913

muted

#7E7B82

Preview Lab

Preview with #663FAE

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

Preview Lab → · Contrast checker → · Palette generator →