#663EA6#663EA6

#663EA6 is a mid, vivid violet. Relative luminance 0.090; OKLCH L 46.6% C 0.160 H 297.5°. Best body text is #FFFFFF at 7.49:1 contrast (WCAG AA passes).

Color values

HEX	#663EA6
RGB	rgb(102, 62, 166)
HSL	hsl(263, 46%, 45%)
HSV	hsv(263, 63%, 65%)
CMYK	cmyk(38.6%, 62.7%, 0%, 34.9%)
CIE-LAB	lab(36.03, 40.32, -49.95)
CIE-LCH	lch(36.03, 64.19, 308.91°)
OKLab	oklab(46.58% 0.0741 -0.1421)
OKLCH	oklch(46.58% 0.16 297.5)
XYZ	xyz(14.0833, 9.0230, 37.0686)
Luminance	0.0902 (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

#663EA6 #7EA63E

analogous

#3E4AA6 #663EA6 #9A3EA6

triadic

#663EA6 #A6663E #3EA666

tetradic

#663EA6 #A63E4A #7EA63E #3EA69A

square

#663EA6 #A63E4A #7EA63E #3EA69A

split-complementary

#663EA6 #A69A3E #4AA63E

monochromatic

#2F1D4D #4B2D79 #663EA6 #855EC3 #A78BD4

Accessibility & contrast

On white

7.49

#663EA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#663EA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663EA6

7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663EA6	#FFFFFF	#000000	##FFFFFF
##663EA6	1.00	7.49	2.80	7.49
#FFFFFF	7.49	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055A9

Deuteranopia (green-blind)

#0B54A4

Tritanopia (blue-blind)

#57556C

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #663ea6;
/* rgb */ color: rgb(102, 62, 166);
/* oklch */ color: oklch(46.6% 0.160 297.5);

Tailwind

colors: {
  custom: {
    50: '#9675c1',
    500: '#663ea6',
    950: '#000000',
  },
}

SCSS

$custom: #663ea6;
$custom-light: #9675c1;
$custom-dark: #000000;

JSON

{
  "hex": "#663ea6",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 166
  },
  "hsl": {
    "h": 263.077,
    "s": 45.614,
    "l": 44.706
  },
  "oklch": {
    "l": 0.46582,
    "c": 0.16026,
    "h": 297.5
  },
  "luminance": 0.09023
}

Semantic roles & 50–950 ramp

primary

#663EA6

secondary

#A7BE82

accent

#D553A3

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663EA6

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

Preview Lab → · Contrast checker → · Palette generator →