#663CCA#663CCA

#663CCA is a mid, highly saturated violet. Relative luminance 0.103; OKLCH L 49.2% C 0.206 H 290.3°. Best body text is #FFFFFF at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#663CCA
RGB	rgb(102, 60, 202)
HSL	hsl(258, 57%, 51%)
HSV	hsv(258, 70%, 79%)
CMYK	cmyk(49.5%, 70.3%, 0%, 20.8%)
CIE-LAB	lab(38.41, 51.28, -67.30)
CIE-LCH	lch(38.41, 84.62, 307.31°)
OKLab	oklab(49.16% 0.0714 -0.1931)
OKLCH	oklch(49.16% 0.206 290.3)
XYZ	xyz(17.7530, 10.3200, 56.9222)
Luminance	0.1032 (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

#663CCA #A0CA3C

analogous

#3C59CA #663CCA #AD3CCA

triadic

#663CCA #CA663C #3CCA66

tetradic

#663CCA #CA3C59 #A0CA3C #3CCAAD

square

#663CCA #CA3C59 #A0CA3C #3CCAAD

split-complementary

#663CCA #CAAD3C #59CA3C

monochromatic

#351E6E #4D2B9E #663CCA #8C6CD7 #B29CE4

Accessibility & contrast

On white

6.85

#663CCA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#663CCA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #663CCA

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663CCA	#FFFFFF	#000000	##FFFFFF
##663CCA	1.00	6.85	3.06	6.85
#FFFFFF	6.85	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DCE

Deuteranopia (green-blind)

#0057C7

Tritanopia (blue-blind)

#44617F

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #663cca;
/* rgb */ color: rgb(102, 60, 202);
/* oklch */ color: oklch(49.2% 0.206 290.3);

Tailwind

colors: {
  custom: {
    50: '#9b75db',
    500: '#663cca',
    950: '#000000',
  },
}

SCSS

$custom: #663cca;
$custom-light: #9b75db;
$custom-dark: #000000;

JSON

{
  "hex": "#663cca",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 202
  },
  "hsl": {
    "h": 257.746,
    "s": 57.258,
    "l": 51.373
  },
  "oklch": {
    "l": 0.49164,
    "c": 0.20591,
    "h": 290.3
  },
  "luminance": 0.10321
}

Semantic roles & 50–950 ramp

primary

#663CCA

secondary

#BED092

accent

#E147B3

background

#FAF7FD

surface

#F4EDFB

border

#CEC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #663CCA

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

Preview Lab → · Contrast checker → · Palette generator →