Our DANIEL SMITH Indigo formula mixes Indanthrone Blue with Lamp Black for an extremely lightfast, intense dark that closely matches true Indigo. Transparent, yet high in tinting strength, this Indigo leaves a gentle faded blue denim stain when blotted from a damp state paint. Blueberries, blackberries and plums are a few subjects to play with using this technique. Use Indigo wherever dusty purples are desired. Indigo evokes a feeling of atmospheric depth used for expressive, moody skies. Try flowing short strokes of Indigo into water, add touches of Sepia and Quinacridone Burnt Orange to create branches and birch trees.