Thirteen distinct CSS color values begin with S: saddlebrown, salmon, sandybrown, seagreen, seashell, sienna, silver, skyblue, slateblue, slategray, snow, springgreen and steelblue — with slategrey a fourteenth keyword spelling that shares slategray’s value (#708090).

Silver (#C0C0C0) and Salmon (#FA8072) are among the best known — silver is one of the original sixteen HTML colors, and salmon is a long-standing CSS keyword.

They are a family on Wikipedia’s list of colors — Spanish Blue, Spanish Green, Spanish Red, Spanish Violet and others — drawn from a Spanish-language color dictionary, distinguishing each hue’s Spanish-tradition definition from its English one.

Several, including Screamin’ Green (renamed from Ultra Green in 1990), Sunglow, Shadow, Sunset Orange, Sea Serpent, Smashed Pumpkin and Sasquatch Socks.

Catalogs reuse names like “Sapphire” or “Sea Green” for different hex values. Rather than keep bare numbers, each variant carries a short tag (for example Deep, Light, Crayola) so the canonical version keeps the bare name.