reds

Looking in my paint box today I notice I only use three reds // winsor red ,//,sennelier red ,//and winsor and newton light red ,,I notice these red seem to contain a little blue they have a crimson cast .to my eyes any way. I have always had a problem with finding a true red from the time I had to paint belesha beacons(for you oldies) by painting the white pole first so the red shone through , painting black over red before applying white (stop it bleeding through ) what red do you like in your palette , is cad red the reddest red as I am thinking of going back to using it