I want my red pepper sauce to be super smoothe, but also crazy red, not orangey. any tips?

cayenne will give it color, and a kick!
are you making a romesco?

Make it to the smoothness you want, then add a bit of beet juice for the color you want. Add a bit at a time - don't worry, it will not take on a beet taste, just a red color. Restaurants always have beet juice on hand to use for this purpose.

You might try blanching them to set the color.