#663DAA#663DAA

#663DAA is a mid, vivid violet. Relative luminance 0.091; OKLCH L 46.7% C 0.167 H 296.7°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#663DAA
RGB	rgb(102, 61, 170)
HSL	hsl(263, 47%, 45%)
HSV	hsv(263, 64%, 67%)
CMYK	cmyk(40%, 64.1%, 0%, 33.3%)
CIE-LAB	lab(36.11, 41.96, -52.21)
CIE-LCH	lch(36.11, 66.98, 308.79°)
OKLab	oklab(46.73% 0.0749 -0.1488)
OKLCH	oklch(46.73% 0.167 296.7)
XYZ	xyz(14.4021, 9.0643, 39.0132)
Luminance	0.0906 (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

#663DAA #81AA3D

analogous

#3D4AAA #663DAA #9C3DAA

triadic

#663DAA #AA663D #3DAA66

tetradic

#663DAA #AA3D4A #81AA3D #3DAA9C

square

#663DAA #AA3D4A #81AA3D #3DAA9C

split-complementary

#663DAA #AA9C3D #4AAA3D

monochromatic

#301D50 #4B2D7D #663DAA #855FC5 #A88CD6

Accessibility & contrast

On white

7.47

#663DAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#663DAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663DAA

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663DAA	#FFFFFF	#000000	##FFFFFF
##663DAA	1.00	7.47	2.81	7.47
#FFFFFF	7.47	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AD

Deuteranopia (green-blind)

#0054A8

Tritanopia (blue-blind)

#55566E

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #663daa;
/* rgb */ color: rgb(102, 61, 170);
/* oklch */ color: oklch(46.7% 0.167 296.7);

Tailwind

colors: {
  custom: {
    50: '#9775c4',
    500: '#663daa',
    950: '#000000',
  },
}

SCSS

$custom: #663daa;
$custom-light: #9775c4;
$custom-dark: #000000;

JSON

{
  "hex": "#663daa",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 170
  },
  "hsl": {
    "h": 262.569,
    "s": 47.186,
    "l": 45.294
  },
  "oklch": {
    "l": 0.4673,
    "c": 0.16659,
    "h": 296.7
  },
  "luminance": 0.09065
}

Semantic roles & 50–950 ramp

primary

#663DAA

secondary

#A9C082

accent

#D751A4

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #663DAA

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

Preview Lab → · Contrast checker → · Palette generator →