I like using the pastel paper with black ink for youth. The colorful work sheets are easy to read. The color is exciting and encourages one to get it done. I highly recommend using a bright color for learner work sheets.
My daughter-in-law uses the special lilac paper in her 7th/8th grade history classroom for special assignments/topics. She has about 85 students in these classes and this is my contribution to the school classroom. These two reams plus one purchased earlier will supply her for the year (hopefully). It is great quality paper and makes easy identification of the different topics. Makes a colorful edition for the project.