vertical striped pattern with rainbow spectrum colors: violet, indigo, blue, green, yellow, orange, red

abstract colorful stripes pattern spectrum violet indigo blue green yellow orange red rainbow vertical bars design art graphic visual display palette bright dynamic creative stylish contemporary color contrast light shade tone gradient information diagram template layout format sample representation symbol concept brightness saturation intensity color-coding visualize understand learn knowledge teaching aid resource informative instructional academic school lesson study classroom education learning reference tool background texture hue artistic modern vibrant sequential organization graphic bold striking spectrum colors visual educational teaching color primary secondary artistic expression