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I can only think of one off the top of my head.

That's red cabbage leaves, they make a blue-purple colour.

I also depends on what you are colouring.

Red cabbage leaves are best for clothing, especially silk or any loose-woven fabric.

Hope this helps.

:)

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Q: WHAT IS A natural blue dye?
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Related questions

What is is indigo?

Indigo is a deep blue purple color. It is also the name of a dye that is derived from the indigo plant.


How was blue dye discovered?

Blue dye was discovered in ancient times using natural sources like plants and minerals. Historically, indigo was a widely used natural blue dye derived from plants, while cobalt blue was discovered in the 18th century by a chemist named Louis Jacques Thenard. Synthetic blue dyes were later developed in the 19th century, revolutionizing the availability and range of blue pigments for various industries.


How do you make purple dye?

mix red and blue dye Red dye- redberries blue dye- woad leaves


Which is worst blue food dye or red food dye?

blue


What did the thirteen colonies use the indigo crop for?

Indigo dye is an organic compound with a distinctive blue color extracted from plants, and this process was important economically because blue dyes were once rare.


How do you make blue pants out of brown pants?

Dye them blue with a blue dye you can buy at Wal-Mart maybe?


Why does blue dye show up better in a plant than red dye?

because blue dye is better than red


What is valuable crop blue dye?

Most natural indigo dye was obtained from various plants in the genus Indigofera, a large genus of over 750 species of flowering plants from the family Fabaceae. Indigo dye can be produced synthetically nowadays.


What is a four letter word for blue dye?

Anil it is the indigo plant or the blue dye obtained from it


How is jean blue and cotton is white?

Jean fabric is typically dyed blue using indigo dye. Cotton, being a natural fiber, is naturally white. When combined in the manufacturing process, the blue dyed jean fabric is made using white cotton fibers.


How is natural dye made and in which areas are natural dyes used?

Natural dye can be made by using plants,animals and minerals. Natural dye is used alot in textiles, and was discovered in china in 2600BC. hope this helped


Where to get blue dye in runescape?

To get blue dye go to the witch in draynor and talk to her about dyes. she will tell you the indgredints she needs for it. get the ingredients give them to her with a small coin fee and she will give you blue dye.