#663DA5#663DA5

#663DA5 is a mid, vivid violet. Relative luminance 0.089; OKLCH L 46.4% C 0.160 H 298.0°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#663DA5
RGB	rgb(102, 61, 165)
HSL	hsl(264, 46%, 44%)
HSV	hsv(264, 63%, 65%)
CMYK	cmyk(38.2%, 63%, 0%, 35.3%)
CIE-LAB	lab(35.75, 40.61, -49.80)
CIE-LCH	lch(35.75, 64.26, 309.20°)
OKLab	oklab(46.36% 0.0753 -0.1417)
OKLCH	oklch(46.36% 0.16 298)
XYZ	xyz(13.9381, 8.8787, 36.5694)
Luminance	0.0888 (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

#663DA5 #7CA53D

analogous

#3D48A5 #663DA5 #9A3DA5

triadic

#663DA5 #A5663D #3DA566

tetradic

#663DA5 #A53D48 #7CA53D #3DA59A

square

#663DA5 #A53D48 #7CA53D #3DA59A

split-complementary

#663DA5 #A59A3D #48A53D

monochromatic

#2F1C4C #4A2C78 #663DA5 #855CC3 #A689D3

Accessibility & contrast

On white

7.57

#663DA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#663DA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663DA5

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663DA5	#FFFFFF	#000000	##FFFFFF
##663DA5	1.00	7.57	2.78	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A8

Deuteranopia (green-blind)

#0B53A3

Tritanopia (blue-blind)

#57546B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #663da5;
/* rgb */ color: rgb(102, 61, 165);
/* oklch */ color: oklch(46.4% 0.160 298.0);

Tailwind

colors: {
  custom: {
    50: '#9675c0',
    500: '#663da5',
    950: '#000000',
  },
}

SCSS

$custom: #663da5;
$custom-light: #9675c0;
$custom-dark: #000000;

JSON

{
  "hex": "#663da5",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 165
  },
  "hsl": {
    "h": 263.654,
    "s": 46.018,
    "l": 44.314
  },
  "oklch": {
    "l": 0.46357,
    "c": 0.16046,
    "h": 298
  },
  "luminance": 0.08879
}

Semantic roles & 50–950 ramp

primary

#663DA5

secondary

#A5BE80

accent

#D652A2

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663DA5

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

Preview Lab → · Contrast checker → · Palette generator →