Colby Marshall is a member of International Thriller Writers and Sisters in Crime. She is especially qualified to write about synesthesia, as she has this rare condition.

“Color Blind is fast paced, suspenseful, and surprising. Forensic psychiatrist Jenna Ramey is a great heroine, whose synesthesia offers a fascinating approach to investigation. Colby Marshall has written a top-notch debut novel.” —Meg Gardiner, author of Phantom Instinct“Readers will look forward to seeing more of this appealing heroine.”—Publishers Weekly“[A] stellar debut… Marshall's style is clipped and spare, her main character and her powerful perceptions an intriguing hero.”—Milwaukee Journal Sentinel  “High stakes and frequent setbacks keep the action taut and demonstrate Jenna's human frailties. Readers will eagerly await Jenna's next adventure, and with an imminent sequel, their wishes will quickly come true.”—Shelf Awareness “One of the most original heroines to grace the pages of thriller fiction in years...[A] rivetingly effective tale that will stoke memories of early James Patterson at his best.”—Providence Journal Praise for the novels of Colby Marshall“Colby Marshall has written a book that deserves to be called THRILLER.”—R.L. Stine, New York Times bestselling author of the Goosebumps series  “An intricate puzzle that will keep you guessing until the very end!”—C.J. Lyons, New York Times bestselling author of Broken  “Colby Marshall’s sterling debut may transpire over more than six or seven days, but like me you'll probably finish it in a single night, racing the dawn to flip the last page. A classic concept updated to fit our politics wary world.”—Jon Land, bestselling author of The Tenth Circle