Mustard Yellow — Mustard Yellow has the warm, muted yellow of prepared mustard, giving it its name. It belongs to the Yellow family: a medium-toned, vivid tone with hex code #D2BD0A and RGB values of 210, 189, 10. Its dominant channel values give it a warm undertone that reads as vivid rather than flat. Mustard Yellow pairs well with metallics like gold or brass for added richness and works nicely in packaging design. Nearest neighbors: gold.