The colors are white, black, blue, green, orange, red, yellow and one more I can't remember. All the directions I have seen are for changing out old thermostats not installing new ones. Any help would be appreciated.

Which stat did you buy and what type of furnace do you have? Read thread #3 on this link before you come back. https://www.askmehelpdesk.com/heating-air-conditioning/heating-cooling-maintenance-repair-troubleshooting-faq-northerheat-58313.html

T stat and furnace have to have matching wiring. These are what the terminals mean. Y is cool g is fan r is power w is heat. C is common. Just be sure they match at t stat and furnace