#663CB6#663CB6

#663CB6 is a mid, vivid violet. Relative luminance 0.094; OKLCH L 47.5% C 0.182 H 294.2°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#663CB6
RGB	rgb(102, 60, 182)
HSL	hsl(261, 50%, 47%)
HSV	hsv(261, 67%, 71%)
CMYK	cmyk(44%, 67%, 0%, 28.6%)
CIE-LAB	lab(36.81, 45.77, -58.21)
CIE-LCH	lch(36.81, 74.05, 308.18°)
OKLab	oklab(47.52% 0.0747 -0.1664)
OKLCH	oklch(47.52% 0.182 294.2)
XYZ	xyz(15.5366, 9.4335, 45.2492)
Luminance	0.0943 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.98

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663CB6 #8CB63C

analogous

#3C4FB6 #663CB6 #A33CB6

triadic

#663CB6 #B6663C #3CB666

tetradic

#663CB6 #B63C4F #8CB63C #3CB6A3

square

#663CB6 #B63C4F #8CB63C #3CB6A3

split-complementary

#663CB6 #B6A33C #4FB63C

monochromatic

#321E5A #4C2D88 #663CB6 #8763CC #AB91DB

Accessibility & contrast

On white

7.27

#663CB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#663CB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663CB6

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CB6	#FFFFFF	#000000	##FFFFFF
##663CB6	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BA

Deuteranopia (green-blind)

#0055B4

Tritanopia (blue-blind)

#505974

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #663cb6;
/* rgb */ color: rgb(102, 60, 182);
/* oklch */ color: oklch(47.5% 0.182 294.2);

Tailwind

colors: {
  custom: {
    50: '#9874cd',
    500: '#663cb6',
    950: '#000000',
  },
}

SCSS

$custom: #663cb6;
$custom-light: #9874cd;
$custom-dark: #000000;

JSON

{
  "hex": "#663cb6",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 182
  },
  "hsl": {
    "h": 260.656,
    "s": 50.413,
    "l": 47.451
  },
  "oklch": {
    "l": 0.47517,
    "c": 0.1824,
    "h": 294.2
  },
  "luminance": 0.09434
}

Semantic roles & 50–950 ramp

primary

#663CB6

secondary

#B1C688

accent

#DA4EAA

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #663CB6

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

Preview Lab → · Contrast checker → · Palette generator →