The word chromatically is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 28
Highest Scoring Words With Friends™ Plays In The Letters
Seven Letter Word Alert: (37 words)
acclaim, achiral, acholia, acrylic, archaic, caloric, catcall, chaotic, charily, chariot, charity, chicory, chloral, chromic, chyloma, clarity, cloacal, coaltar, cochair, comical, cotylar, crayola, cyathia, haricot, loathly, lyrical, mailcar, marital, martial, mayoral, morally, mycolic, mycotic, octarch, tallyho, thalami, thrilly