#663DA7#663DA7

#663DA7 is a mid, vivid violet. Relative luminance 0.090; OKLCH L 46.5% C 0.163 H 297.5°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#663DA7
RGB	rgb(102, 61, 167)
HSL	hsl(263, 46%, 45%)
HSV	hsv(263, 63%, 65%)
CMYK	cmyk(38.9%, 63.5%, 0%, 34.5%)
CIE-LAB	lab(35.89, 41.15, -50.77)
CIE-LCH	lch(35.89, 65.35, 309.03°)
OKLab	oklab(46.51% 0.0752 -0.1445)
OKLCH	oklch(46.51% 0.163 297.5)
XYZ	xyz(14.1215, 8.9521, 37.5356)
Luminance	0.0895 (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

#663DA7 #7EA73D

analogous

#3D49A7 #663DA7 #9B3DA7

triadic

#663DA7 #A7663D #3DA766

tetradic

#663DA7 #A73D49 #7EA73D #3DA79B

square

#663DA7 #A73D49 #7EA73D #3DA79B

split-complementary

#663DA7 #A79B3D #49A73D

monochromatic

#2F1C4D #4B2D7A #663DA7 #855DC4 #A78AD4

Accessibility & contrast

On white

7.53

#663DA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#663DA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663DA7

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663DA7	#FFFFFF	#000000	##FFFFFF
##663DA7	1.00	7.53	2.79	7.53
#FFFFFF	7.53	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AA

Deuteranopia (green-blind)

#0353A5

Tritanopia (blue-blind)

#56556C

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #663da7;
/* rgb */ color: rgb(102, 61, 167);
/* oklch */ color: oklch(46.5% 0.163 297.5);

Tailwind

colors: {
  custom: {
    50: '#9675c2',
    500: '#663da7',
    950: '#000000',
  },
}

SCSS

$custom: #663da7;
$custom-light: #9675c2;
$custom-dark: #000000;

JSON

{
  "hex": "#663da7",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 167
  },
  "hsl": {
    "h": 263.208,
    "s": 46.491,
    "l": 44.706
  },
  "oklch": {
    "l": 0.46506,
    "c": 0.16291,
    "h": 297.5
  },
  "luminance": 0.08952
}

Semantic roles & 50–950 ramp

primary

#663DA7

secondary

#A7BF81

accent

#D652A3

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663DA7

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

Preview Lab → · Contrast checker → · Palette generator →