font
Adobe Caslon is a serif font. It goes well with Brandon Grotesque, Effra, Myriad Pro, Rosario, GT Walsheim, NY Irvin, Adelle Sans, Museo Sans, FF Meta and Wulkan Display. If you're thinking about using Adobe Caslon then try 41px for headers. Give 18px a shot for content.
People commonly tag it as design, writing, ecommerce, shopping, typography, fashion, magazine, education, agency and contrast. You can get it from Fonts.com, Fontspring and Typekit.
Adobe Caslon on its own
22 Adobe Caslon samples