The correct term is "hair color." If you're referring to the shade or dye used for hair, you can specify colors like blonde, brunette, red, or black. If you meant "hair collar," that term isn't commonly used; you might be referring to a hairstyle or an accessory related to hair.
black
The population of Coller Capital is 150.
Coller Capital's population is 2,012.
Coller Capital was created in 1990.
Saundra Coller is 5' 3".
Richard Coller has written: 'Barrio Gacao'
Alan van Coller was born in 1967.
Julius A. Coller House was created in 1887.
Dolf Van Coller has written: 'Skoonveld'
Xavier Coller has written: 'Estudio de casos'
Coller Capital was founded in 1990 by Jeremy Coller. Coller Capital is one of the leading global investors in the private equite secondary market. It's headquarters is located in London, United Kingdom.
"coller" means "to stick" in Frenchcollant, collante = stickycolle (fem.) = glue