#663AA3#663AA3

#663AA3 is a mid, vivid violet. Relative luminance 0.085; OKLCH L 45.8% C 0.162 H 299.1°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#663AA3
RGB	rgb(102, 58, 163)
HSL	hsl(265, 48%, 43%)
HSV	hsv(265, 64%, 64%)
CMYK	cmyk(37.4%, 64.4%, 0%, 36.1%)
CIE-LAB	lab(34.99, 41.73, -49.82)
CIE-LCH	lch(34.99, 64.99, 309.95°)
OKLab	oklab(45.76% 0.079 -0.1417)
OKLCH	oklch(45.76% 0.162 299.1)
XYZ	xyz(13.6018, 8.4951, 35.5663)
Luminance	0.0849 (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

#663AA3 #77A33A

analogous

#3A42A3 #663AA3 #9A3AA3

triadic

#663AA3 #A3663A #3AA366

tetradic

#663AA3 #A33A42 #77A33A #3AA39A

square

#663AA3 #A33A42 #77A33A #3AA39A

split-complementary

#663AA3 #A39A3A #42A33A

monochromatic

#2E1A49 #4A2A76 #663AA3 #8457C3 #A584D3

Accessibility & contrast

On white

7.78

#663AA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#663AA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663AA3

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663AA3	#FFFFFF	#000000	##FFFFFF
##663AA3	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A6

Deuteranopia (green-blind)

#0651A1

Tritanopia (blue-blind)

#585169

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #663aa3;
/* rgb */ color: rgb(102, 58, 163);
/* oklch */ color: oklch(45.8% 0.162 299.1);

Tailwind

colors: {
  custom: {
    50: '#9673bf',
    500: '#663aa3',
    950: '#000000',
  },
}

SCSS

$custom: #663aa3;
$custom-light: #9673bf;
$custom-dark: #000000;

JSON

{
  "hex": "#663aa3",
  "rgb": {
    "r": 102,
    "g": 58,
    "b": 163
  },
  "hsl": {
    "h": 265.143,
    "s": 47.511,
    "l": 43.333
  },
  "oklch": {
    "l": 0.45764,
    "c": 0.16228,
    "h": 299.1
  },
  "luminance": 0.08495
}

Semantic roles & 50–950 ramp

primary

#663AA3

secondary

#A2BD7C

accent

#D7519F

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #663AA3

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

Preview Lab → · Contrast checker → · Palette generator →