IMAN Cosmetics breaks down foundation color into three categories:

Sand: light olive to tan
Clay: medium olive to light brown
Earth: medium brown to deep ebony

"Within these three categories, shades either range from light to deep or are in numerical order," says Giugliano.

The Iman Cream to Powder, $16, and Iman Stick Foundation, $16, both carry the most options, with 14 shades. Once you've used the categorization system to find your perfect match, Iman's website also has a nifty "Meet Your Match" section that suggests Sand, Clay and Earth tones if you wear similar shades in Black Opal, MAC, Revlon, Fashion Fair or Black Up.

Fashion Fair True Finish Refining Mineral Foundation, $28, comes in 18 shades between the lightest medium beige all the way to the darkest deep brown. What also makes this brand a standout: when you mouse over each shade on the brand's website, you're given a helpful summary of the present undertones (i.e. "Dark brown with a red undertone") to take more guesswork out of ordering online. Fashion Fair also takes blotchiness and hyperpigmentation into consideration with Fashion Fair True Fix Foundation , $29.30, which pairs 30 shades in 15 compacts with duos women can blend together to create an even skin tone.

M.A.C. is known for it's impressive color range and the brand doesn't disappoint in the foundation field. Many lines may offer 20+ shades, but this typically means there are 10 to 15 shades on the light to medium end of the spectrum and a few dark shades tacked on the end. M.A.C., on the other hand, has products like M.A.C. Studio Fix Fluid SPF 15, $27, which comes in a hefty 35 shades to hit every complexion -- from the lightest shade (3.5) to the deepest, which clocks in at 58.

Although it's not touted as a specialized skin care line, BareMinerals offers one of the widest ranges of skin tones on the darker side of the spectrum compared to others on the market. BareMinerals READY Foundation Broad Spectrum SPF 20, $29, comes in 20 shades, a whopping half of which fall on the medium to dark range. Better yet, each swatch comes with a descriptive summary ranging from "rosy undertones" to "subtle yellow-olive undertones" to really help you nail your shade.

Established in 1999, this French makeup line was one of the first created by makeup artists specifically for women of color. The swatches for Black Up Cream to Powder Foundation, $41, show the brand's expertise in capturing the subtleties of dark skin. The foundation comes in a range of 16 shades with one of the darkest swatches on the market, and a new creamy formula enriched with mattifying powders curbs oil buildup for a velvety finish.