1. Most-to-Least Legible Color Combinations for Viewing on Slide Shows Color and contrast are very important tools in communication. They can be used to enhance communication if used properly and can also harm communication if used improperly.

2. Most Legible 1—Black on Yellow

3. 2—Green on White

4. 3—Red on White

5. 4—Blue on White

6. 5—White on Blue

7. 6— Black on White

8. 7—Yellow on Black

9. 8—White on Red

10. 9—White on Green

11. 10—White on Black

12. 11—Red on Yellow

13. 12—Green on Red

14. 13—Red on Green

15. 14—Blue on Red Next to least legible

16. 15—Black on Black

17. 16—White on White