RotGelbGrün

Rotgelbgrün is a compact term used in German to describe a triadic color scheme consisting of red (rot), yellow (gelb) and green (grün). The phrase appears in design, signage, and information-graphics contexts to indicate a simple, easily readable color code.

In practice, rotgelbgrün serves multiple functions. In traffic signaling and safety systems, the three colors commonly represent sequential states: red signals stop or danger, yellow denotes caution or transition, and green indicates go or safety. In dashboards and data visualization, the palette is used to convey performance, risk, or status at a glance, with red signaling poor or negative outcomes, green indicating good or acceptable results, and yellow filling the intermediate zone.

Design considerations for rotgelbgrün include perceptual distinctness and accessibility. High enough luminance contrast between the colors helps ensure legibility for viewers with normal vision, while avoiding combinations that are problematic for color-vision deficiencies. When possible, it is advisable to supplement color cues with textual labels, icons, or patterns to improve clarity for all users.

Variants of rotgelbgrün are common in gradients and categorical palettes. In gradients, the hues can be arranged from red through yellow to green to illustrate progression or improvement, though care is needed to avoid misinterpretation due to cultural associations with each color. Overall, rotgelbgrün remains a widely understood, practical palette for signaling and status indication in European design and communication.