Dyed or stained with henna.

Diminutive of blonde, adj.

Of a person: having hair bleached with or as with peroxide. Also as n.: a person with bleached hair (rare).

of hair: of a very light, silvery colour, esp. as the result of bleaching (cf. platinum blonde, n. adj.).

With the sense ‘treated with a blue rinse’, as blue rinse hair, blue rinse hairstyle, etc.