#663AB3#663AB3

#663AB3 is a mid, vivid violet. Relative luminance 0.091; OKLCH L 47.0% C 0.181 H 295.2°. Best body text is #FFFFFF at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#663AB3
RGB	rgb(102, 58, 179)
HSL	hsl(262, 51%, 46%)
HSV	hsv(262, 68%, 70%)
CMYK	cmyk(43%, 67.6%, 0%, 29.8%)
CIE-LAB	lab(36.19, 46.02, -57.44)
CIE-LCH	lch(36.19, 73.60, 308.70°)
OKLab	oklab(47% 0.0772 -0.1641)
OKLCH	oklch(47% 0.181 295.2)
XYZ	xyz(15.1271, 9.1052, 43.5996)
Luminance	0.0911 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 3.61

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663AB3 #87B33A

analogous

#3A4BB3 #663AB3 #A33AB3

triadic

#663AB3 #B3663A #3AB366

tetradic

#663AB3 #B33A4B #87B33A #3AB3A3

square

#663AB3 #B33A4B #87B33A #3AB3A3

split-complementary

#663AB3 #B3A33A #4BB33A

monochromatic

#311C57 #4C2B85 #663AB3 #865FCB #A98DDA

Accessibility & contrast

On white

7.44

#663AB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#663AB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663AB3

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663AB3	#FFFFFF	#000000	##FFFFFF
##663AB3	1.00	7.44	2.82	7.44
#FFFFFF	7.44	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B7

Deuteranopia (green-blind)

#0053B1

Tritanopia (blue-blind)

#515772

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #663ab3;
/* rgb */ color: rgb(102, 58, 179);
/* oklch */ color: oklch(47.0% 0.181 295.2);

Tailwind

colors: {
  custom: {
    50: '#9873cb',
    500: '#663ab3',
    950: '#000000',
  },
}

SCSS

$custom: #663ab3;
$custom-light: #9873cb;
$custom-dark: #000000;

JSON

{
  "hex": "#663ab3",
  "rgb": {
    "r": 102,
    "g": 58,
    "b": 179
  },
  "hsl": {
    "h": 261.818,
    "s": 51.055,
    "l": 46.471
  },
  "oklch": {
    "l": 0.46999,
    "c": 0.18139,
    "h": 295.2
  },
  "luminance": 0.09106
}

Semantic roles & 50–950 ramp

primary

#663AB3

secondary

#ADC584

accent

#DB4DA7

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #663AB3

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

Preview Lab → · Contrast checker → · Palette generator →