#663CAB#663CAB

#663CAB is a mid, vivid violet. Relative luminance 0.090; OKLCH L 46.7% C 0.169 H 296.7°. Best body text is #FFFFFF at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#663CAB
RGB	rgb(102, 60, 171)
HSL	hsl(263, 48%, 45%)
HSV	hsv(263, 65%, 67%)
CMYK	cmyk(40.4%, 64.9%, 0%, 32.9%)
CIE-LAB	lab(35.98, 42.78, -53.02)
CIE-LCH	lch(35.98, 68.13, 308.90°)
OKLab	oklab(46.66% 0.076 -0.1511)
OKLCH	oklch(46.66% 0.169 296.7)
XYZ	xyz(14.4441, 8.9965, 39.4957)
Luminance	0.0900 (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

#663CAB #81AB3C

analogous

#3C49AB #663CAB #9E3CAB

triadic

#663CAB #AB663C #3CAB66

tetradic

#663CAB #AB3C49 #81AB3C #3CAB9E

square

#663CAB #AB3C49 #81AB3C #3CAB9E

split-complementary

#663CAB #AB9E3C #49AB3C

monochromatic

#301C50 #4B2C7E #663CAB #855EC6 #A88BD6

Accessibility & contrast

On white

7.50

#663CAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#663CAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663CAB

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CAB	#FFFFFF	#000000	##FFFFFF
##663CAB	1.00	7.50	2.80	7.50
#FFFFFF	7.50	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AE

Deuteranopia (green-blind)

#0053A9

Tritanopia (blue-blind)

#55556E

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #663cab;
/* rgb */ color: rgb(102, 60, 171);
/* oklch */ color: oklch(46.7% 0.169 296.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#663cab",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 171
  },
  "hsl": {
    "h": 262.703,
    "s": 48.052,
    "l": 45.294
  },
  "oklch": {
    "l": 0.46659,
    "c": 0.16918,
    "h": 296.7
  },
  "luminance": 0.08997
}

Semantic roles & 50–950 ramp

primary

#663CAB

secondary

#A9C182

accent

#D850A4

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #663CAB

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

Preview Lab → · Contrast checker → · Palette generator →