l to r: blue marine boxcalf 32 HAC, ghw; blue marine boxcalf 35 Birkin, phw; navy boxcalf 32 Kelly, ghw; indigo fjord 31 Bolide, phw
The Birkins are a shade or two lighter than indigo. The Kelly is darker than the pic shows IRL. I'm not sure of the true name of the color. It's 1994 (x in a circle).
this is without a flash, yet it's darker than this IRL.