yelow {

#short {
  color: #fea;
}
#long {
  color: #ffeeaa;
}
#rgba {
  color: rgba(255, 238, 170, 0.1);
}
#argb {
  color: argb(rgba(255, 238, 170, 0.1));
}

}

blue {

#short {
  color: #00f;
}
#long {
  color: #0000ff;
}
#rgba {
  color: rgba(0, 0, 255, 0.1);
}
#argb {
  color: argb(rgba(0, 0, 255, 0.1));
}

}

alpha hsla {

color: hsla(11, 20%, 20%, 0.6);

}

overflow {

.a { color: #111111 - #444444; } // #000000
.b { color: #eee + #fff; } // #ffffff
.c { color: #aaa * 3; } // #ffffff
.d { color: #00ee00 + #009900; } // #00ff00

}

grey {

color: rgb(200, 200, 200);

}

#808080 {

color: hsl(50, 0%, 50%);

}

#00ff00 {

color: hsl(120, 100%, 50%);

}

.lightenblue {

color: lighten(blue, 10%);

}

.darkenblue {

color: darken(blue, 10%);

}

.unknowncolors {

color: blue2;
border: 2px solid superred;

}