Color is personal preference, as to which color you want on your darts. There is 4 style of dart tips i am aware of right now. These tips are smaller length wise to other tips and are pretty durable, but make your darts a little smaller. Might take awhile to get use to them. Theres a few accessories you might want to consider if you decide you like the game of darts.
Most darts come with a hard case that only hold one set of darts.
There are dart cases made to hold up to 4 sets of darts and extra things like, shafts, tips, quarters, flights, and whatever you can fit into it. Comes in handy having extra things on hand at tournaments in case something unexpected should happen. A dart tool comes in handy to untighten tips and tighten them up, or tighten shafts, or to spread your shafts apart to slip your flights in, in case of being crimped to tight from being stepped on or hitting the floor the wrong way. A pocket sized outchart comes in handy for begining players to look at to learn your outshots. As you play more darts you'll learn to remember your outshots better.