This hue is inspired by the cheerful yellow of the classic rubber duckie, a bath-time toy modeled after the soft yellow of baby ducklings. Though real ducks don’t stay that color for long, the fluffy, feel-good tone was a natural fit for a toy meant to charm. Created with synthetic pigments added to rubber, vinyl, or plastic, this sunny shade became an icon of childhood. While modern duckies come in a rainbow of colors, the original remains the symbol of bath-time joy—made unforgettable by a certain Sesame Street song.