A color chart of blue color collection is a visual tool that displays a range of blue shades, from light to dark, and can be used for color selection, design, and artistic expression. It often includes swatches of different blues arranged in a systematic order to help users identify and choose the desired hue. Blue is a primary color in the RGB color model and is known for its calming and serene qualities. It is widely used in various fields such as art, fashion, and interior design.