#663BA6#663BA6

#663BA6 is a mid, vivid violet. Relative luminance 0.087; OKLCH L 46.1% C 0.165 H 298.1°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#663BA6
RGB	rgb(102, 59, 166)
HSL	hsl(264, 48%, 44%)
HSV	hsv(264, 64%, 65%)
CMYK	cmyk(38.6%, 64.5%, 0%, 34.9%)
CIE-LAB	lab(35.41, 41.98, -50.94)
CIE-LCH	lch(35.41, 66.01, 309.49°)
OKLab	oklab(46.14% 0.0776 -0.1451)
OKLCH	oklch(46.14% 0.165 298.1)
XYZ	xyz(13.9247, 8.7057, 37.0157)
Luminance	0.0871 (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

#663BA6 #7BA63B

analogous

#3B46A6 #663BA6 #9C3BA6

triadic

#663BA6 #A6663B #3BA666

tetradic

#663BA6 #A63B46 #7BA63B #3BA69C

square

#663BA6 #A63B46 #7BA63B #3BA69C

split-complementary

#663BA6 #A69C3B #46A63B

monochromatic

#2F1B4C #4A2B79 #663BA6 #855AC4 #A687D4

Accessibility & contrast

On white

7.66

#663BA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#663BA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663BA6

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663BA6	#FFFFFF	#000000	##FFFFFF
##663BA6	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A9

Deuteranopia (green-blind)

#0052A4

Tritanopia (blue-blind)

#57536B

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #663ba6;
/* rgb */ color: rgb(102, 59, 166);
/* oklch */ color: oklch(46.1% 0.165 298.1);

Tailwind

colors: {
  custom: {
    50: '#9673c1',
    500: '#663ba6',
    950: '#000000',
  },
}

SCSS

$custom: #663ba6;
$custom-light: #9673c1;
$custom-dark: #000000;

JSON

{
  "hex": "#663ba6",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 166
  },
  "hsl": {
    "h": 264.112,
    "s": 47.556,
    "l": 44.118
  },
  "oklch": {
    "l": 0.46135,
    "c": 0.1645,
    "h": 298.1
  },
  "luminance": 0.08706
}

Semantic roles & 50–950 ramp

primary

#663BA6

secondary

#A5BF7E

accent

#D751A1

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663BA6

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

Preview Lab → · Contrast checker → · Palette generator →