The answer is MAUVELOUS. There are six entries in the puzzle whose clues end with a number in parentheses. Those entries are all Crayola crayon colors (hinted at by 22A and 53A). As hinted at by the title, you need the hexadecimal code for those colors (specifically for the Crayola version - this is pretty easy to find on Wikipedia or Google), and the number in parentheses tells you which number or letter to take from the code. So:
17A TIMBERWOLF (6) -> D9D6CF -> F
25A RAZZMATAZZ (3) -> E30B5C -> 0
37A MANATEE (3) -> 8D90A1 -> 9
39A APRICOT (6) -> FDD5B1 -> 1
49A OUTERSPACE (6) -> 2D383A -> A
59A CORNFLOWER (1) -> 93CCEA -> 9
In grid order, the six numbers/letters you get gives you another hex code: F091A9, which is the hex code for the Crayola color MAUVELOUS.
Thanks for solving!