Question

in the context of Russian Revolution elaborate upon reds whites and Greens

Answer 1

First of all, let's assume we're talking about the Russian Civil War, not the Revolution. It's important to know that originally red was the color of labor movement and almost every socialist used it. The government of the Soviet Republic (proclaimed after the October Revolution) was initially coalitional, but by the summer of 1918 the Bolsheviks outlawed every other party, and the terms 'Soviet' and 'Bolshevik' started to mean the same.

So, the "Reds" were supporters of Bolsheviks or members of the Soviet Republic's Red Army.

The term "Whites" is more complicated. Immediately after the October Revolution anti-Bolshevik forces, primarily the Volunteer Army, started to gather in Southern Russia. Another anti-Soviet government formed in Nothern Russia, and another in Northwestern Russia (partly in Estonia). After admiral Kolchak took over Siberia in November 1918, that became one another anti-Bolshevik military force. So, the term "Whites" usually refers to these formations, albeit they weren't united de facto.

the "Reds" were supporters of Bolsheviks; the "Whites" were their opposers - (but not all opposers of Bolsheviks were Whites); and there were many more independent forces.