#663BBA#663BBA

#663BBA is a mid, vivid violet. Relative luminance 0.095; OKLCH L 47.7% C 0.188 H 293.5°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#663BBA
RGB	rgb(102, 59, 186)
HSL	hsl(260, 52%, 48%)
HSV	hsv(260, 68%, 73%)
CMYK	cmyk(45.2%, 68.3%, 0%, 27.1%)
CIE-LAB	lab(36.92, 47.40, -60.37)
CIE-LCH	lch(36.92, 76.76, 308.14°)
OKLab	oklab(47.7% 0.0751 -0.1728)
OKLCH	oklch(47.7% 0.188 293.5)
XYZ	xyz(15.9040, 9.4974, 47.4401)
Luminance	0.0950 (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

#663BBA #8FBA3B

analogous

#3B4FBA #663BBA #A53BBA

triadic

#663BBA #BA663B #3BBA66

tetradic

#663BBA #BA3B4F #8FBA3B #3BBAA5

square

#663BBA #BA3B4F #8FBA3B #3BBAA5

split-complementary

#663BBA #BAA53B #4FBA3B

monochromatic

#331E5D #4D2C8C #663BBA #8864CE #AC93DD

Accessibility & contrast

On white

7.24

#663BBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#663BBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663BBA

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663BBA	#FFFFFF	#000000	##FFFFFF
##663BBA	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BE

Deuteranopia (green-blind)

#0055B7

Tritanopia (blue-blind)

#4E5A76

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #663bba;
/* rgb */ color: rgb(102, 59, 186);
/* oklch */ color: oklch(47.7% 0.188 293.5);

Tailwind

colors: {
  custom: {
    50: '#9974d0',
    500: '#663bba',
    950: '#000000',
  },
}

SCSS

$custom: #663bba;
$custom-light: #9974d0;
$custom-dark: #000000;

JSON

{
  "hex": "#663bba",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 186
  },
  "hsl": {
    "h": 260.315,
    "s": 51.837,
    "l": 48.039
  },
  "oklch": {
    "l": 0.477,
    "c": 0.1884,
    "h": 293.5
  },
  "luminance": 0.09498
}

Semantic roles & 50–950 ramp

primary

#663BBA

secondary

#B3C889

accent

#DB4DAB

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0F0814

muted

#7E7B82

Preview Lab

Preview with #663BBA

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

Preview Lab → · Contrast checker → · Palette generator →