#663FB7#663FB7

#663FB7 is a mid, vivid violet. Relative luminance 0.098; OKLCH L 48.0% C 0.180 H 293.4°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).

Color values

HEX	#663FB7
RGB	rgb(102, 63, 183)
HSL	hsl(260, 49%, 48%)
HSV	hsv(260, 66%, 72%)
CMYK	cmyk(44.3%, 65.6%, 0%, 28.2%)
CIE-LAB	lab(37.48, 44.43, -57.70)
CIE-LCH	lch(37.48, 72.82, 307.59°)
OKLab	oklab(48.03% 0.0714 -0.1649)
OKLCH	oklch(48.03% 0.18 293.4)
XYZ	xyz(15.8019, 9.7982, 45.8492)
Luminance	0.0980 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.59

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663FB7 #90B73F

analogous

#3F54B7 #663FB7 #A23FB7

triadic

#663FB7 #B7663F #3FB766

tetradic

#663FB7 #B73F54 #90B73F #3FB7A2

square

#663FB7 #B73F54 #90B73F #3FB7A2

split-complementary

#663FB7 #B7A23F #54B73F

monochromatic

#33205C #4D2F89 #663FB7 #8868CB #AC96DB

Accessibility & contrast

On white

7.10

#663FB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#663FB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663FB7

7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663FB7	#FFFFFF	#000000	##FFFFFF
##663FB7	1.00	7.10	2.96	7.10
#FFFFFF	7.10	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABB

Deuteranopia (green-blind)

#0056B5

Tritanopia (blue-blind)

#4F5B75

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #663fb7;
/* rgb */ color: rgb(102, 63, 183);
/* oklch */ color: oklch(48.0% 0.180 293.4);

Tailwind

colors: {
  custom: {
    50: '#9876cd',
    500: '#663fb7',
    950: '#000000',
  },
}

SCSS

$custom: #663fb7;
$custom-light: #9876cd;
$custom-dark: #000000;

JSON

{
  "hex": "#663fb7",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 183
  },
  "hsl": {
    "h": 259.5,
    "s": 48.78,
    "l": 48.235
  },
  "oklch": {
    "l": 0.48025,
    "c": 0.17972,
    "h": 293.4
  },
  "luminance": 0.09799
}

Semantic roles & 50–950 ramp

primary

#663FB7

secondary

#B3C68B

accent

#D84FAC

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0914

muted

#7E7B82

Preview Lab

Preview with #663FB7

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

Preview Lab → · Contrast checker → · Palette generator →