Luteous is an uncommon word that refers to a yellowish or golden color. Synonyms for luteous include ochre, amber, lemon, buttery, and saffron. Other related shades of yellow include canary, gold, maize, and sunshine. Luteous may also be used interchangeably with terms such as yellowish, golden, or mustard-colored. It is often used in describing the color of flora or fauna, like luteous petals or a luteous beak. Luteous can also be used in a more abstract sense to describe a warm or cheerful tone. The wide range of synonyms for luteous indicates how colors can evoke a variety of emotions and associations.