NO SPRAYPAINT, BLECK...
I'll take some new pics tonight, not only is it blue, it's now reversed, the numbers are white(or blue in the dark) and the background is black.
check out
http://www.99accord.com I'm sure he'll set you up with an LED and resistor just for the clock for a good deal. I'm in the middle of re-doing my climate control to white with reverse numbers(strip off the polarizing film and put some new stuff on 180 degrees).
Also you can go to an electronics store, buy an LED, shave it off, find the right resistor and mount it to do the same, or you can take your bulb out, spray paint it, and not be able to see you clock other than a faint glow of the color your painted on.
http://www.igd4u.com on the left side, down about half way it says LED how-to, I put that together when I did my dash blue, I'll have some new pics when I finish the white though.