Yellow
My personal experience would to go with black or gray. Depending on the color graduation gowns and cap, its best to go with a neutral color. Maybe even find a tie that matches the gown. Also, find a suit that will be comfortable for one during a long graduation and a light-weight enough material to not overheat.
Yellow colour
The act of graduating, or the state of being graduated; as, graduation of a scale; graduation at a college; graduation in color; graduation by evaporation; the graduation of a bird's tail, etc., The marks on an instrument or vessel to indicate degrees or quantity; a scale., The exposure of a liquid in large surfaces to the air, so as to hasten its evaporation.
at the graduation
Graduation is a ceremony, where students become graduates. The date of graduation is called "graduation day". Some people have graduation parties to celebrate graduation. They are quite popular.
after post graduation.
Graduation is the gradual progression of color from dark to light or from light to dark. It is in small increments that appear to blend into one another.
a black tie
Any colors will go with a white shirt
What are you getting at? Graduation:)
Both are correct and commonly used. "Congratulations on your graduation" and "Congratulations for your graduation" have the same meaning and can be used interchangeably.