Installing a new fan the wire colors are different from what is in ceiling. Ceiling has white black and red and ground wire. Fan has white black blue and ground. I know I connect all the grounds together. I think black to black and white to white but does red go to blue? Help will be appreciated. Thanks

Ceiling black and white are the obvious hot and neutral. The red could be a second switch to the ceiling, is there a second switch or no for sure? The fan tells me you have a light kit on the fan. Ceiling black goes to fan black and fan blue, white gets split to fan white and light white. Guess we should ask if you are things of multiswitches on the wall, remote or chains to control these two units, what's you thinking?

Caution here, please.

How are you going to control the fan and light package? Are you going to use wall switches?

If you are, then the Black - Red - White and ground may be the feeds from the switches.

Do you have a multi-meter? If so, take the black probe and place it on the white lead. Then take the Red probe and place it the black lead. You should see a constant 120 VAC. Check the walls for switches, if you see two grouped together than turn one of them off and check the meter. If the meter now shows 0 (zero) VAC, then you know that the switch ties to the black lead. Black will go to the Black fan lead.

Next, move the black probe to the Red lead. Repeat the same test.

If the red lead is also controlled by a switch, then that red lead will go to the blue light package lead.

If neither black or red are controlled by switches and both are a constant hot (120 VAC) measured between Neutral (white), then I would still suggest black to fan black, red to fan blue, white to white and ground to ground.