#663CB7#663CB7

#663CB7 is a mid, vivid violet. Relative luminance 0.095; OKLCH L 47.6% C 0.184 H 294.0°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#663CB7
RGB	rgb(102, 60, 183)
HSL	hsl(260, 51%, 48%)
HSV	hsv(260, 67%, 72%)
CMYK	cmyk(44.3%, 67.2%, 0%, 28.2%)
CIE-LAB	lab(36.88, 46.05, -58.67)
CIE-LCH	lch(36.88, 74.58, 308.13°)
OKLab	oklab(47.6% 0.0746 -0.1678)
OKLCH	oklch(47.6% 0.184 294)
XYZ	xyz(15.6403, 9.4750, 45.7954)
Luminance	0.0948 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.84

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663CB7 #8DB73C

analogous

#3C4FB7 #663CB7 #A33CB7

triadic

#663CB7 #B7663C #3CB766

tetradic

#663CB7 #B73C4F #8DB73C #3CB7A3

square

#663CB7 #B73C4F #8DB73C #3CB7A3

split-complementary

#663CB7 #B7A33C #4FB73C

monochromatic

#331E5B #4C2D89 #663CB7 #8864CC #AB92DB

Accessibility & contrast

On white

7.25

#663CB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#663CB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663CB7

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CB7	#FFFFFF	#000000	##FFFFFF
##663CB7	1.00	7.25	2.89	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BB

Deuteranopia (green-blind)

#0055B4

Tritanopia (blue-blind)

#4F5A74

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #663cb7;
/* rgb */ color: rgb(102, 60, 183);
/* oklch */ color: oklch(47.6% 0.184 294.0);

Tailwind

colors: {
  custom: {
    50: '#9875cd',
    500: '#663cb7',
    950: '#000000',
  },
}

SCSS

$custom: #663cb7;
$custom-light: #9875cd;
$custom-dark: #000000;

JSON

{
  "hex": "#663cb7",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 183
  },
  "hsl": {
    "h": 260.488,
    "s": 50.617,
    "l": 47.647
  },
  "oklch": {
    "l": 0.47596,
    "c": 0.18359,
    "h": 294
  },
  "luminance": 0.09475
}

Semantic roles & 50–950 ramp

primary

#663CB7

secondary

#B1C688

accent

#DA4EAA

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #663CB7

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

Preview Lab → · Contrast checker → · Palette generator →