Illamasqua Force is a very cool-toned, dark blue with a cream finish. It is a permanent nail lacquer that retails for $17.00 and contains 0.5 oz.
Illamasqua Nail Varnish Force ($14.00 for 0.50 fl. oz.) is described as a "deep electric blue." It's a really rich, cornflower blue with a creamy finish, and it even has a faint purpleness to it. It almost looks purple in certain lighting--more royal blue than electric blue to me! Deborah Lippmann I Know What Boys Like is similar but bluer. Essie Declare Your Denim is a bit darker and bluer.