#663CC6#663CC6

#663CC6 is a mid, highly saturated violet. Relative luminance 0.101; OKLCH L 48.8% C 0.201 H 291.0°. Best body text is #FFFFFF at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#663CC6
RGB	rgb(102, 60, 198)
HSL	hsl(258, 55%, 51%)
HSV	hsv(258, 70%, 78%)
CMYK	cmyk(48.5%, 69.7%, 0%, 22.4%)
CIE-LAB	lab(38.08, 50.18, -65.52)
CIE-LCH	lch(38.08, 82.52, 307.45°)
OKLab	oklab(48.83% 0.0721 -0.1879)
OKLCH	oklch(48.83% 0.201 291)
XYZ	xyz(17.2855, 10.1331, 54.4602)
Luminance	0.1013 (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

#663CC6 #9CC63C

analogous

#3C57C6 #663CC6 #AB3CC6

triadic

#663CC6 #C6663C #3CC666

tetradic

#663CC6 #C63C57 #9CC63C #3CC6AB

square

#663CC6 #C63C57 #9CC63C #3CC6AB

split-complementary

#663CC6 #C6AB3C #57C63C

monochromatic

#351F69 #4D2D98 #663CC6 #8B6BD4 #B09BE2

Accessibility & contrast

On white

6.94

#663CC6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#663CC6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663CC6

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CC6	#FFFFFF	#000000	##FFFFFF
##663CC6	1.00	6.94	3.03	6.94
#FFFFFF	6.94	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCA

Deuteranopia (green-blind)

#0057C3

Tritanopia (blue-blind)

#475F7D

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #663cc6;
/* rgb */ color: rgb(102, 60, 198);
/* oklch */ color: oklch(48.8% 0.201 291.0);

Tailwind

colors: {
  custom: {
    50: '#9a75d8',
    500: '#663cc6',
    950: '#000000',
  },
}

SCSS

$custom: #663cc6;
$custom-light: #9a75d8;
$custom-dark: #000000;

JSON

{
  "hex": "#663cc6",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 198
  },
  "hsl": {
    "h": 258.261,
    "s": 54.762,
    "l": 50.588
  },
  "oklch": {
    "l": 0.48826,
    "c": 0.20125,
    "h": 291
  },
  "luminance": 0.10134
}

Semantic roles & 50–950 ramp

primary

#663CC6

secondary

#BBCE90

accent

#DE4AB1

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0815

muted

#7F7B83

Preview Lab

Preview with #663CC6

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

Preview Lab → · Contrast checker → · Palette generator →