Need help on a tutorial (believe it or not)

Howdy howdy, I am currently doing the Kirupa tutorial in which you can make your own colouring book, and i was presented with this action-script instruction:
on (release) { _root.fillColor = /someHexCode here, e.g. 0x000000 for black/ } I did this, placing in the hex code #0066FF, which is a blue colour. Yet when i went to check the syntax it came up with this error:

Error Scene=Scene 1, layer=stuff, frame=1:Line 2: Operator ‘=’ must be followed by an operand
_root.fillColor = #0066FF

What is an operand and what have i done wrong?:sigh: