M.A.C. has actually been focused on diversity in makeup for a long time: This concealer has 23 shades (not to mention, SPF for those hot summer days).
This one is quite pricey, but it really does the trick. So if you feel like spoiling yourself a little, this is perfect for you. It also has an awesome little sponge applicator to make blending easier.
This highly-pigmented liquid formula, is available in 15 shades, is designed for full coverage and has an amazingly smooth finish.