Usage: Blah. {{color|limegreen|Text goes here.}} Blub.
Result: Blah. Text goes here. Blah.
Usage: Blah. {{color|#00ff00|Text goes here.}} Blah.
Result: Blah. Text goes here. Blah.
Usage: Blah. {{color||Text goes here.}} Blah.
Result: Blah. Text goes here. Blah.