Fun with colors

This is the base color (black). This should be blue This should be red.

this is green with yellow background
this is black with yellow background
This should be black

this is green with yellow background
this is also green this is black. Check the .tex file. This should not generate alot of black tags Check the .tex file. This should not generate alot of black tags Check the .tex file. This should not generate alot of black tags Check the .tex file. This should not generate alot of black tags Check the .tex file. This should not generate alot of black tags Check the .tex file. This should not generate alot of black tags Check the .tex file. This should not generate alot of black tags Check the .tex file. This should not generate alot of black tags Check the .tex file. This should not generate alot of black tags Check the .tex file. This should not generate alot of black tags Check the .tex file. This should not generate alot of black tags Check the .tex file. This should not generate alot of black tags Check the .tex file. This should not generate alot of black tags Check the .tex file. This should not generate alot of black tags