#663AC6#663AC6

#663AC6 is a mid, highly saturated violet. Relative luminance 0.099; OKLCH L 48.6% C 0.204 H 291.3°. Best body text is #FFFFFF at 7.03:1 contrast (WCAG AA passes).

Color values

HEX	#663AC6
RGB	rgb(102, 58, 198)
HSL	hsl(259, 55%, 50%)
HSV	hsv(259, 71%, 78%)
CMYK	cmyk(48.5%, 70.7%, 0%, 22.4%)
CIE-LAB	lab(37.71, 51.20, -66.12)
CIE-LCH	lch(37.71, 83.63, 307.75°)
OKLab	oklab(48.56% 0.074 -0.1896)
OKLCH	oklch(48.56% 0.204 291.3)
XYZ	xyz(17.1827, 9.9275, 54.4260)
Luminance	0.0993 (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

#663AC6 #9AC63A

analogous

#3A54C6 #663AC6 #AC3AC6

triadic

#663AC6 #C6663A #3AC666

tetradic

#663AC6 #C63A54 #9AC63A #3AC6AC

square

#663AC6 #C63A54 #9AC63A #3AC6AC

split-complementary

#663AC6 #C6AC3A #54C63A

monochromatic

#351E68 #4D2C97 #663AC6 #8B69D4 #B099E1

Accessibility & contrast

On white

7.03

#663AC6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#663AC6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663AC6

7.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663AC6	#FFFFFF	#000000	##FFFFFF
##663AC6	1.00	7.03	2.99	7.03
#FFFFFF	7.03	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BCA

Deuteranopia (green-blind)

#0056C3

Tritanopia (blue-blind)

#475E7C

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #663ac6;
/* rgb */ color: rgb(102, 58, 198);
/* oklch */ color: oklch(48.6% 0.204 291.3);

Tailwind

colors: {
  custom: {
    50: '#9a74d8',
    500: '#663ac6',
    950: '#000000',
  },
}

SCSS

$custom: #663ac6;
$custom-light: #9a74d8;
$custom-dark: #000000;

JSON

{
  "hex": "#663ac6",
  "rgb": {
    "r": 102,
    "g": 58,
    "b": 198
  },
  "hsl": {
    "h": 258.857,
    "s": 55.118,
    "l": 50.196
  },
  "oklch": {
    "l": 0.48564,
    "c": 0.20356,
    "h": 291.3
  },
  "luminance": 0.09928
}

Semantic roles & 50–950 ramp

primary

#663AC6

secondary

#BACD8F

accent

#DE49B0

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0815

muted

#7F7B83

Preview Lab

Preview with #663AC6

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

Preview Lab → · Contrast checker → · Palette generator →