#663BAB#663BAB

#663BAB is a mid, vivid violet. Relative luminance 0.089; OKLCH L 46.5% C 0.171 H 296.9°. Best body text is #FFFFFF at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#663BAB
RGB	rgb(102, 59, 171)
HSL	hsl(263, 49%, 45%)
HSV	hsv(263, 65%, 67%)
CMYK	cmyk(40.4%, 65.5%, 0%, 32.9%)
CIE-LAB	lab(35.78, 43.33, -53.34)
CIE-LCH	lch(35.78, 68.72, 309.08°)
OKLab	oklab(46.51% 0.0771 -0.1521)
OKLCH	oklch(46.51% 0.171 296.9)
XYZ	xyz(14.3922, 8.8927, 39.4784)
Luminance	0.0889 (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

#663BAB #80AB3B

analogous

#3B48AB #663BAB #9E3BAB

triadic

#663BAB #AB663B #3BAB66

tetradic

#663BAB #AB3B48 #80AB3B #3BAB9E

square

#663BAB #AB3B48 #80AB3B #3BAB9E

split-complementary

#663BAB #AB9E3B #48AB3B

monochromatic

#301C50 #4B2B7D #663BAB #855CC7 #A78AD7

Accessibility & contrast

On white

7.56

#663BAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#663BAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663BAB

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663BAB	#FFFFFF	#000000	##FFFFFF
##663BAB	1.00	7.56	2.78	7.56
#FFFFFF	7.56	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AE

Deuteranopia (green-blind)

#0053A9

Tritanopia (blue-blind)

#55556E

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #663bab;
/* rgb */ color: rgb(102, 59, 171);
/* oklch */ color: oklch(46.5% 0.171 296.9);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#663bab",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 171
  },
  "hsl": {
    "h": 263.036,
    "s": 48.696,
    "l": 45.098
  },
  "oklch": {
    "l": 0.46514,
    "c": 0.17054,
    "h": 296.9
  },
  "luminance": 0.08893
}

Semantic roles & 50–950 ramp

primary

#663BAB

secondary

#A8C181

accent

#D850A4

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #663BAB

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

Preview Lab → · Contrast checker → · Palette generator →