#663BBB#663BBB

#663BBB is a mid, vivid violet. Relative luminance 0.095; OKLCH L 47.8% C 0.190 H 293.3°. Best body text is #FFFFFF at 7.22:1 contrast (WCAG AA passes).

Color values

HEX	#663BBB
RGB	rgb(102, 59, 187)
HSL	hsl(260, 52%, 48%)
HSV	hsv(260, 68%, 73%)
CMYK	cmyk(45.5%, 68.4%, 0%, 26.7%)
CIE-LAB	lab(37.00, 47.67, -60.83)
CIE-LCH	lch(37.00, 77.29, 308.09°)
OKLab	oklab(47.78% 0.075 -0.1741)
OKLCH	oklch(47.78% 0.19 293.3)
XYZ	xyz(16.0106, 9.5401, 48.0019)
Luminance	0.0954 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.47

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663BBB #90BB3B

analogous

#3B50BB #663BBB #A63BBB

triadic

#663BBB #BB663B #3BBB66

tetradic

#663BBB #BB3B50 #90BB3B #3BBBA6

square

#663BBB #BB3B50 #90BB3B #3BBBA6

split-complementary

#663BBB #BBA63B #50BB3B

monochromatic

#331E5E #4D2C8C #663BBB #8865CE #AC93DD

Accessibility & contrast

On white

7.22

#663BBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#663BBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663BBB

7.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663BBB	#FFFFFF	#000000	##FFFFFF
##663BBB	1.00	7.22	2.91	7.22
#FFFFFF	7.22	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BF

Deuteranopia (green-blind)

#0055B8

Tritanopia (blue-blind)

#4D5B76

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #663bbb;
/* rgb */ color: rgb(102, 59, 187);
/* oklch */ color: oklch(47.8% 0.190 293.3);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#663bbb",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 187
  },
  "hsl": {
    "h": 260.156,
    "s": 52.033,
    "l": 48.235
  },
  "oklch": {
    "l": 0.47781,
    "c": 0.18958,
    "h": 293.3
  },
  "luminance": 0.09541
}

Semantic roles & 50–950 ramp

primary

#663BBB

secondary

#B3C88A

accent

#DB4CAB

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0F0814

muted

#7E7B82

Preview Lab

Preview with #663BBB

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

Preview Lab → · Contrast checker → · Palette generator →