For the Comprehensive Rules entry on colors, see Colors (rules). The  Color Pie  (a.k.a.  Color Wheel ) is a representation of Magic colors and their mechanics, and how Wizards categorizes mechanics in the game of Magic: The Gathering.
The submarine now spawns in the Los Santos Marina (just to the north of the helipad) regardless of the in-game time between 8am and 12am (midnight). I've checked this out in multiple sessions and it's always usually there between those times. NB: As with other submarine spawn locations, it may not appear the first time you arrive in the area. If it doesn't appear for you the first time, just leave the area and then return and it should spawn. Dalamo, Biohazard Abyss and Killzone3265 like this.
The hatch on the top is always used for entering and exiting, despite the fact that another hatch on the bottom of the vehicle is technically used for underwater exits. When exiting the Submersible, a submarine icon will remain on the map while the player is within a certain radius of it.