What color antifreeze do i use in my 2003 blazer?

my 98 Blazer I had to replace radiator water pump heatercore and hoses. Had head gasket go. Once that happens air and dexcool corrode cooling system. Do you smell antifreeze? Are you loosing antifreeze? Check oil see if its another color not clear or black but i think light brown. Have you flushed out system?

I do not think the color matters, just read the label what temperatures it operates properly as some a green, some blue and some orange, I personally use the orange ELF antifreeze with operating temperatures from -23 Celcius to +50 Celcius

Prestone sells a orange colored antifreeze that can mix with any possible other brand of antifreeze.
They have it at Wall Mart.
I've used it and even mixed it with VW brand antifreeze.

Mopar Antifreeze/coolant5 year/100,000 mile formula HOAT (Hybrid Organic Additive Technology)

Is there a pool of antifreeze on the passenger side floor board? if so you might want to take it in and have the Heater core checked

take a paper towel and let it soak in then see what color the paper is. it maybe deceiving to the eye when on concrete

Dex-Cool is what the manufactor call from
The color is Orange

Not green Coolant

get a mechanic to have a look ,water level low hence the heater is cold and ac taking a long time to cool because the fan isnt starting up when ac is turned on ,Sounds like your fan is playing up and you may have cooked the head gasket??

all antifreeze is the same and can be used in all cars- but for summertime you want a half mixture of antifreeze and water

If you can't find it or if its stuck (they often are, remove the lower hose. it's faster and easier. (don't do this hot...unless you like really hot antifreeze baths) It helps to leave the radiator cap on till you get the hose off. the antifreeze comes out with a bit less force.
Good luck!!