Algae Green — Algae Green is a distinctive shade whose name reflects its overall visual character. It belongs to the Green family: a medium-toned, vivid tone with hex code #21C36F and RGB values of 33, 195, 111. Its dominant channel values give it a cool undertone that reads as vivid rather than flat. Algae Green pairs well with crisp whites and warm neutrals and works nicely in art and illustration palettes. Nearest neighbors: sage.