fan - for starters, the forum owners prefer you make pics a link rather than inline, if you click the 'edit' button below the post you can change it
for the color, if it's near accurate, and a '57 color, it could be Alpine Blue [no known modern code], but every computer will show it differently, and of course the camera that took the picture left it's influence as well, so the "exact same color" could be any modern paint code - try printing the picture [printer will influence it some more] and take it to your paint supplier to compare with their sample chips .... or you could just go look at the chip books and take your pick
Bill