#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
RGBrgb(102, 60, 202)
HSLhsl(258, 57%, 51%)
HSVhsv(258, 70%, 79%)
CMYKcmyk(49.5%, 70.3%, 0%, 20.8%)
CIE-LABlab(38.41, 51.28, -67.30)
CIE-LCHlch(38.41, 84.62, 307.31°)
OKLaboklab(49.16% 0.0714 -0.1931)
OKLCHoklch(49.16% 0.206 290.3)
XYZxyz(17.7530, 10.3200, 56.9222)
Luminance0.1032 (WCAG relative)
Temperaturecool
Familyviolet

Closest named colors

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
##663CCA1.006.853.066.85
#FFFFFF6.851.0021.001.00
#0000003.0621.001.0021.00
##FFFFFF6.851.0021.001.00

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 →

#663CCA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva