MAC Royally Blue is a very cool-toned, dark blue with a pearl finish. It is a limited edition eyeshadow that retails for $22.00 and contains 0.049 oz.
MAC Royally Blue Pro Longwear Colour Stick ($22.00 for 0.049 oz.) is a medium-dark blue with cool undertones and fine, pearl shimmer. It had sheer to semi-sheer coverage; it was drier and difficult to apply even on the arm (an area where it's easier to use stronger pressure than the lash line/lid). The texture was challenging on the lid, as it would not budge or move at all, so the area doesn't have a blended or even look to it at all. The color, while uneven and patchy, stays exactly that way for ten hours. Stila Sapphire (LE, $18.00) is more shimmery, darker (95% similar). Kat Von D Entombed (DC, ) is more shimmery, darker (95% similar). ColourPop Etiquette (LE, $6.00) is more shimmery, darker (90% similar). LORAC Cobalt (LE, $19.00) is more shimmery (90% similar). Dior Exuberante #4 (LE, ) is more shimmery, darker, warmer (90% similar). Marc Jacobs Beauty The Siren #6 (LE, ) is more shimmery, brighter, cooler (90% similar). MAC In the Shadows (P, $17.00) is more shimmery, warmer (90% similar). Kat Von D Estrella (LE, ) is more shimmery, darker (90% similar). See comparison swatches / view dupes side-by-side.