#663BC3#663BC3

#663BC3 is a mid, vivid violet. Relative luminance 0.099; OKLCH L 48.4% C 0.199 H 291.7°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#663BC3
RGB	rgb(102, 59, 195)
HSL	hsl(259, 54%, 50%)
HSV	hsv(259, 70%, 76%)
CMYK	cmyk(47.7%, 69.7%, 0%, 23.5%)
CIE-LAB	lab(37.65, 49.87, -64.47)
CIE-LCH	lch(37.65, 81.51, 307.72°)
OKLab	oklab(48.44% 0.0736 -0.1848)
OKLCH	oklch(48.44% 0.199 291.7)
XYZ	xyz(16.8910, 9.8922, 52.6386)
Luminance	0.0989 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663BC3 #98C33B

analogous

#3B54C3 #663BC3 #AA3BC3

triadic

#663BC3 #C3663B #3BC366

tetradic

#663BC3 #C33B54 #98C33B #3BC3AA

square

#663BC3 #C33B54 #98C33B #3BC3AA

split-complementary

#663BC3 #C3AA3B #54C33B

monochromatic

#351F65 #4D2D94 #663BC3 #8A69D2 #AF98E0

Accessibility & contrast

On white

7.05

#663BC3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#663BC3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663BC3

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663BC3	#FFFFFF	#000000	##FFFFFF
##663BC3	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC7

Deuteranopia (green-blind)

#0056C0

Tritanopia (blue-blind)

#495E7B

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #663bc3;
/* rgb */ color: rgb(102, 59, 195);
/* oklch */ color: oklch(48.4% 0.199 291.7);

Tailwind

colors: {
  custom: {
    50: '#9a74d6',
    500: '#663bc3',
    950: '#000000',
  },
}

SCSS

$custom: #663bc3;
$custom-light: #9a74d6;
$custom-dark: #000000;

JSON

{
  "hex": "#663bc3",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 195
  },
  "hsl": {
    "h": 258.971,
    "s": 53.543,
    "l": 49.804
  },
  "oklch": {
    "l": 0.48442,
    "c": 0.19893,
    "h": 291.7
  },
  "luminance": 0.09893
}

Semantic roles & 50–950 ramp

primary

#663BC3

secondary

#B8CC8E

accent

#DD4BAF

background

#FAF7FD

surface

#F3EDFA

border

#CDC8D3

text

#0F0814

muted

#7F7B83

Preview Lab

Preview with #663BC3

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

Preview Lab → · Contrast checker → · Palette generator →