靛蓝的
4.deciduous subshrub of southeastern Asia having pinnate leaves and clusters of red or purple flowers; a source of indigo dye.
7.The Construction of Indigo Gene Expression Vectors and the Study of Cloning Carnation CHS Promoter
9.During Holi celebrants toss clouds of powdered pigments in shades of indigo, magenta, and saffron to celebrate the passion of Hindu god Krishna for his lover, Radha.

