Demobox has 19 color palettes (from Google's material ui) and 18 font pairings (from femmebot's google type project). These can be used in any combination. The following screenshots display these colors and fonts in example combinations.

The "head" font is the one used to identify a font pair. For example, to get the first example, you would have in your header:

colors: red
fontPair: Alfa Slab One
ColorsHeadBody
red Alfa Slab One Gentium Book Basic
ColorsHeadBody
pink Fugaz One Monda
ColorsHeadBody
purple Megrim Roboto Slab
ColorsHeadBody
deep-purple Montserrat Domine
ColorsHeadBody
indigo Neuton Neuton
ColorsHeadBody
blue Nixie One Libre Baskerville
ColorsHeadBody
light-blue Open Sans Condensed Lora
ColorsHeadBody
cyan Open Sans Gentium Basic
ColorsHeadBody
teal Ovo Muli
ColorsHeadBody
green Philosopher Muli
ColorsHeadBody
light-green Playfair Display Fauna One
ColorsHeadBody
lime Quando Judson
ColorsHeadBody
yellow Quattrocento Fanwood Text
ColorsHeadBody
amber Questrial Old Standard TT
ColorsHeadBody
orange Ultra Slabo 13px
ColorsHeadBody
deep-orange Unica One Vollkorn
ColorsHeadBody
brown Vast Shadow Playfair Display
ColorsHeadBody
grey Vollkorn Exo
ColorsHeadBody
blue-grey Alfa Slab One Gentium Book Basic