Orange represents: the color of sunset, fruit, vegetables, joy, friendship...
Red represents: the color of fire, zest for life (is the color of; wine, fruit and blood)
Green represent: healing power of nature, security, health, loyalty and patriotism, etc.
This combination is a favorite in marketing, educational campus, sport teams and events and anything fighting for the instant appeal promising a sense of safety, mixed with excitement. Many photographers use this color combinations in their work.