Blue is best used for learning situations which are challenging. Blue paper, blue ink, or blue highlighting can be used to help improve reading comprehension too. Blue in general it seems is a relaxing and calming color, but lighter shades will seem more 'friendly' while darker ones seem a little more somber.
Using Color to Enhance Learning and Influence MoodColorImpactYellowCreates a positive feeling. Optimum color for maintaining attention. Encourages creativity.OrangeIncreases alertness.GreenCreates calmness.PurpleCreates calmness.