>>6754215Photos are to imprecise for such a site to be worth much more than just comparing your photo with some paint charts. Look at the range of blue in the photo here, good luck matching all of this to any one paint.
I donä't know of anything for the latter either, but here's a few suggestions for Federal Standard hues to model paints at least:
http://www.ipmsstockholm.org/colorcharts/stuff_eng_colorcharts_fs.htm 