#663EB4#663EB4

#663EB4 is a mid, vivid violet. Relative luminance 0.096; OKLCH L 47.6% C 0.177 H 294.2°. Best body text is #FFFFFF at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#663EB4
RGB	rgb(102, 62, 180)
HSL	hsl(260, 49%, 47%)
HSV	hsv(260, 66%, 71%)
CMYK	cmyk(43.3%, 65.6%, 0%, 29.4%)
CIE-LAB	lab(37.05, 44.14, -56.63)
CIE-LCH	lch(37.05, 71.80, 307.94°)
OKLab	oklab(47.65% 0.0728 -0.1618)
OKLCH	oklch(47.65% 0.177 294.2)
XYZ	xyz(15.4381, 9.5649, 44.2040)
Luminance	0.0956 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 3.09

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663EB4 #8CB43E

analogous

#3E51B4 #663EB4 #A13EB4

triadic

#663EB4 #B4663E #3EB466

tetradic

#663EB4 #B43E51 #8CB43E #3EB4A1

square

#663EB4 #B43E51 #8CB43E #3EB4A1

split-complementary

#663EB4 #B4A13E #51B43E

monochromatic

#321F59 #4C2E86 #663EB4 #8765CA #AB93DA

Accessibility & contrast

On white

7.21

#663EB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#663EB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663EB4

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663EB4	#FFFFFF	#000000	##FFFFFF
##663EB4	1.00	7.21	2.91	7.21
#FFFFFF	7.21	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B8

Deuteranopia (green-blind)

#0055B2

Tritanopia (blue-blind)

#515A73

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #663eb4;
/* rgb */ color: rgb(102, 62, 180);
/* oklch */ color: oklch(47.6% 0.177 294.2);

Tailwind

colors: {
  custom: {
    50: '#9876cb',
    500: '#663eb4',
    950: '#000000',
  },
}

SCSS

$custom: #663eb4;
$custom-light: #9876cb;
$custom-dark: #000000;

JSON

{
  "hex": "#663eb4",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 180
  },
  "hsl": {
    "h": 260.339,
    "s": 48.76,
    "l": 47.451
  },
  "oklch": {
    "l": 0.47645,
    "c": 0.1774,
    "h": 294.2
  },
  "luminance": 0.09565
}

Semantic roles & 50–950 ramp

primary

#663EB4

secondary

#B1C589

accent

#D84FAA

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #663EB4

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

Preview Lab → · Contrast checker → · Palette generator →