#663EA7#663EA7

#663EA7 is a mid, vivid violet. Relative luminance 0.091; OKLCH L 46.7% C 0.162 H 297.3°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#663EA7
RGB	rgb(102, 62, 167)
HSL	hsl(263, 46%, 45%)
HSV	hsv(263, 63%, 65%)
CMYK	cmyk(38.9%, 62.9%, 0%, 34.5%)
CIE-LAB	lab(36.10, 40.59, -50.43)
CIE-LCH	lch(36.10, 64.74, 308.83°)
OKLab	oklab(46.66% 0.074 -0.1435)
OKLCH	oklch(46.66% 0.162 297.3)
XYZ	xyz(14.1754, 9.0598, 37.5536)
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

#663EA7 #7FA73E

analogous

#3E4AA7 #663EA7 #9B3EA7

triadic

#663EA7 #A7663E #3EA766

tetradic

#663EA7 #A73E4A #7FA73E #3EA79B

square

#663EA7 #A73E4A #7FA73E #3EA79B

split-complementary

#663EA7 #A79B3E #4AA73E

monochromatic

#2F1D4E #4B2D7A #663EA7 #855FC3 #A78BD4

Accessibility & contrast

On white

7.47

#663EA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#663EA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663EA7

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663EA7	#FFFFFF	#000000	##FFFFFF
##663EA7	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)

#0055AA

Deuteranopia (green-blind)

#0754A5

Tritanopia (blue-blind)

#56556C

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #663ea7;
/* rgb */ color: rgb(102, 62, 167);
/* oklch */ color: oklch(46.7% 0.162 297.3);

Tailwind

colors: {
  custom: {
    50: '#9675c2',
    500: '#663ea7',
    950: '#000000',
  },
}

SCSS

$custom: #663ea7;
$custom-light: #9675c2;
$custom-dark: #000000;

JSON

{
  "hex": "#663ea7",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 167
  },
  "hsl": {
    "h": 262.857,
    "s": 45.852,
    "l": 44.902
  },
  "oklch": {
    "l": 0.46656,
    "c": 0.1615,
    "h": 297.3
  },
  "luminance": 0.0906
}

Semantic roles & 50–950 ramp

primary

#663EA7

secondary

#A8BF82

accent

#D652A4

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663EA7

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

Preview Lab → · Contrast checker → · Palette generator →