Natural Blue Dyes

Indigo-bearing plants are the source of a true, lasting natural blue, which is why indigo has been prized by dyers around the world. Our natural indigo extract is a plant-based blue dye for fabric and yarn, giving a full range of blues from pale sky to deep navy on cotton, linen, wool and silk. For a complete vat, see our natural indigo collection with fructose.

Blue, green and purple

Blue is the key to the rest of the natural palette: overdye with yellow dyes for greens and with red dyes for purples and violets.

Caring for indigo-dyed textiles

Rinse well after dyeing, wash separately at first, and dry out of direct sun. Indigo has excellent wash fastness and softens beautifully with wear.

Frequently asked questions

Is there a natural blue dye other than indigo?

Indigo-bearing plants are the main source of a fast natural blue; other plant blues fade quickly.

Can I get light blue?

Yes. Use one or two short dips in the vat for pale shades.

Does natural blue dye need a mordant?

No. Indigo bonds by oxidation in the air, so no mordant is needed.

Explore more: Natural Indigo · All Natural Dyes