#663BAC#663BAC

#663BAC is a mid, vivid violet. Relative luminance 0.089; OKLCH L 46.6% C 0.172 H 296.6°. Best body text is #FFFFFF at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#663BAC
RGB	rgb(102, 59, 172)
HSL	hsl(263, 49%, 45%)
HSV	hsv(263, 66%, 67%)
CMYK	cmyk(40.7%, 65.7%, 0%, 32.5%)
CIE-LAB	lab(35.85, 43.59, -53.82)
CIE-LCH	lch(35.85, 69.26, 309.01°)
OKLab	oklab(46.59% 0.077 -0.1535)
OKLCH	oklch(46.59% 0.172 296.6)
XYZ	xyz(14.4879, 8.9310, 39.9823)
Luminance	0.0893 (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

#663BAC #81AC3B

analogous

#3B48AC #663BAC #9F3BAC

triadic

#663BAC #AC663B #3BAC66

tetradic

#663BAC #AC3B48 #81AC3B #3BAC9F

square

#663BAC #AC3B48 #81AC3B #3BAC9F

split-complementary

#663BAC #AC9F3B #48AC3B

monochromatic

#301C51 #4B2B7E #663BAC #855DC7 #A88AD7

Accessibility & contrast

On white

7.54

#663BAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#663BAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663BAC

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663BAC	#FFFFFF	#000000	##FFFFFF
##663BAC	1.00	7.54	2.79	7.54
#FFFFFF	7.54	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AF

Deuteranopia (green-blind)

#0053AA

Tritanopia (blue-blind)

#54556E

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #663bac;
/* rgb */ color: rgb(102, 59, 172);
/* oklch */ color: oklch(46.6% 0.172 296.6);

Tailwind

colors: {
  custom: {
    50: '#9774c5',
    500: '#663bac',
    950: '#000000',
  },
}

SCSS

$custom: #663bac;
$custom-light: #9774c5;
$custom-dark: #000000;

JSON

{
  "hex": "#663bac",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 172
  },
  "hsl": {
    "h": 262.832,
    "s": 48.918,
    "l": 45.294
  },
  "oklch": {
    "l": 0.46591,
    "c": 0.17174,
    "h": 296.6
  },
  "luminance": 0.08931
}

Semantic roles & 50–950 ramp

primary

#663BAC

secondary

#A9C181

accent

#D84FA4

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #663BAC

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

Preview Lab → · Contrast checker → · Palette generator →