Could anything be a primer with an air rush?

Self-explanatory title, but to go more in-depth— been thinking of using Pro Acryl’s “Royal Purple” to “prime” the arms of Dark Kraken’s purple, and the rest of the body with Dark Grey Blue (to make the Black paint be more pronounced)— thoughts and opinions? Or should I stick to using a Black primer on the whole figure and then airbrush purple onto the arms?