#663AB5#663AB5

#663AB5 is a mid, vivid violet. Relative luminance 0.092; OKLCH L 47.2% C 0.184 H 294.7°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#663AB5
RGB	rgb(102, 58, 181)
HSL	hsl(261, 51%, 47%)
HSV	hsv(261, 68%, 71%)
CMYK	cmyk(43.6%, 68%, 0%, 29%)
CIE-LAB	lab(36.34, 46.56, -58.37)
CIE-LCH	lch(36.34, 74.67, 308.58°)
OKLab	oklab(47.16% 0.0769 -0.1669)
OKLCH	oklch(47.16% 0.184 294.7)
XYZ	xyz(15.3308, 9.1867, 44.6726)
Luminance	0.0919 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 3.34

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663AB5 #89B53A

analogous

#3A4CB5 #663AB5 #A33AB5

triadic

#663AB5 #B5663A #3AB566

tetradic

#663AB5 #B53A4C #89B53A #3AB5A3

square

#663AB5 #B53A4C #89B53A #3AB5A3

split-complementary

#663AB5 #B5A33A #4CB53A

monochromatic

#321C58 #4C2B87 #663AB5 #8760CC #AA8EDB

Accessibility & contrast

On white

7.40

#663AB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#663AB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663AB5

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663AB5	#FFFFFF	#000000	##FFFFFF
##663AB5	1.00	7.40	2.84	7.40
#FFFFFF	7.40	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B9

Deuteranopia (green-blind)

#0054B2

Tritanopia (blue-blind)

#505873

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #663ab5;
/* rgb */ color: rgb(102, 58, 181);
/* oklch */ color: oklch(47.2% 0.184 294.7);

Tailwind

colors: {
  custom: {
    50: '#9873cc',
    500: '#663ab5',
    950: '#000000',
  },
}

SCSS

$custom: #663ab5;
$custom-light: #9873cc;
$custom-dark: #000000;

JSON

{
  "hex": "#663ab5",
  "rgb": {
    "r": 102,
    "g": 58,
    "b": 181
  },
  "hsl": {
    "h": 261.463,
    "s": 51.464,
    "l": 46.863
  },
  "oklch": {
    "l": 0.47159,
    "c": 0.18375,
    "h": 294.7
  },
  "luminance": 0.09187
}

Semantic roles & 50–950 ramp

primary

#663AB5

secondary

#AFC685

accent

#DB4DA8

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #663AB5

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

Preview Lab → · Contrast checker → · Palette generator →