Blue is the color of calm, cool, and communication.
I love painting in blue when I feel I have a message to lovingly share with the world around me. Blue universes and galaxies give me the sense of a spaciousness and calm.
When you become aware of the psychological effects of color on yourself, you have another tool that you can use to create artwork that can communicate those feelings to others. People will love to put your work in their homes and spaces because it makes them feel deeply.