Primary colors are red, yellow, and blue. Black to darken, white to lighten.

i think u want a basic colour pallete, not the rainbow. anyways, these colours u should find in any standard quallity paint ranges e.g winsor & newton, grumbacher, gamblin, daler- rowney, liqutex, golden. first u should research what medium u want to do like watercolor, acrylic, oil. now for some basic colours: permanent rose, alizarin crimson, cadmium yellow pale hue or cadmium yellow light, pthalo blue, ultramarine blue, viridian or pthalo green blue shade, burnt umber, yellow ochre( light earth colour) and titanium white ( large tube). my colour pallete, which i use for landscapes consists of, naples yellow hue, vermillion, cobalt blue, sap green, hansa yellow light, and iriscendent white. this may sound all confusing to u now, but after a while u will start memorizing the colours. one thing to keep in mind, STAY AWAY FROM POOR QUALLITY PAINTS. just ask the clerk at your local art store to reccommend u some good quallity paints. trust me, its worth it not coming back to exchange the tubes after u see the colors are very dark and non vibrant, or the tube breaks.