"the colours of the rainbow" in French

Summary

The French translation for “the colours of the rainbow” is les couleurs de l’arc-en-ciel. The French, les couleurs de l’arc-en-ciel, can be broken down into 4 parts:"the (plural)" (les), "colours" (couleurs), "of; from" (de) and "the rainbow" (l’arc-en-ciel).