If I understand that you are asking about "red hot" as in "really spicy" there are two ways to say it. "Muy picante" is a formal and proper way of saying this. "Muy caliente" is a more lax and common way to say it, but out of context it is usually used to describe attractive members of the opposite sex.
Enrojecido, a
Caliente rojo!
Chiles Rojo Vivo. But since Red Hot Chili Peppers is a name, you would just say Red Hot Chili Peppers in spanish
"gato caliente" means Hot cat in "spanish"
"Pelirrojo."pelirrojopelirrojo/a
Hot date - fecha caliente
calor [ka'loɾ]
"Tengo calor"
Francisco
Hace calor
Well, it's not exact but to say You're hot in Spanish it is "as tu es caliente" I hope that helps...
'Red' in Spanish is 'rojo.' It also can be "colorado", or if referring to hair, "pelirrojo".
You can say "Bueno y caliente".
"Todas las chicas deben tener labios muy rojos y tacones rojos/zapatillas rojas"