Yes, COLONES is a Scrabble word!

Letter values in Scrabble US: C 3, O 1, L 1, O 1, N 1, E 1, S 1.

Is it a valid word?

COLONES is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

the part of the large intestine between the cecum and the rectum; it extracts moisture from food residues before they are excreted
the basic unit of money in El Salvador; equal to 100 centavos
the basic unit of money in Costa Rica; equal to 100 centimos
a port city at the Caribbean entrance to the Panama Canal
a punctuation mark (:) used after a word introducing a series or an example or an explanation (or after the salutation of a business letter)

Also: el salvadoran colon, costa rican colon.

Not playable in Scrabble US: ASPINWALL.