#663AAB#663AAB

#663AAB is a mid, vivid violet. Relative luminance 0.088; OKLCH L 46.4% C 0.172 H 297.1°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#663AAB
RGB	rgb(102, 58, 171)
HSL	hsl(263, 49%, 45%)
HSV	hsv(263, 66%, 67%)
CMYK	cmyk(40.4%, 66.1%, 0%, 32.9%)
CIE-LAB	lab(35.58, 43.87, -53.67)
CIE-LCH	lch(35.58, 69.31, 309.26°)
OKLab	oklab(46.37% 0.0782 -0.153)
OKLCH	oklch(46.37% 0.172 297.1)
XYZ	xyz(14.3413, 8.7909, 39.4614)
Luminance	0.0879 (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

#663AAB #7FAB3A

analogous

#3A46AB #663AAB #9F3AAB

triadic

#663AAB #AB663A #3AAB66

tetradic

#663AAB #AB3A46 #7FAB3A #3AAB9F

square

#663AAB #AB3A46 #7FAB3A #3AAB9F

split-complementary

#663AAB #AB9F3A #46AB3A

monochromatic

#2F1B50 #4B2A7D #663AAB #855BC7 #A789D7

Accessibility & contrast

On white

7.61

#663AAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#663AAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663AAB

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663AAB	#FFFFFF	#000000	##FFFFFF
##663AAB	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AE

Deuteranopia (green-blind)

#0052A9

Tritanopia (blue-blind)

#55546D

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #663aab;
/* rgb */ color: rgb(102, 58, 171);
/* oklch */ color: oklch(46.4% 0.172 297.1);

Tailwind

colors: {
  custom: {
    50: '#9773c5',
    500: '#663aab',
    950: '#000000',
  },
}

SCSS

$custom: #663aab;
$custom-light: #9773c5;
$custom-dark: #000000;

JSON

{
  "hex": "#663aab",
  "rgb": {
    "r": 102,
    "g": 58,
    "b": 171
  },
  "hsl": {
    "h": 263.363,
    "s": 49.345,
    "l": 44.902
  },
  "oklch": {
    "l": 0.46371,
    "c": 0.17189,
    "h": 297.1
  },
  "luminance": 0.08791
}

Semantic roles & 50–950 ramp

primary

#663AAB

secondary

#A8C180

accent

#D94FA3

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #663AAB

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

Preview Lab → · Contrast checker → · Palette generator →