The Kelvin typeface is the culmination of a sensitive thinking around a modern aesthetic in typography. It is expressed through two stylistic axes — with and without serifs — with both being based on two historical ideas of modernity. Even though their designs are not based on the same skeleton, Kelvin Avec and Kelvin Sans are tied together by a common philosophy, that of building as opposed to plotting or drawing. Each one is accompanied by an italic and a titling version in which their inherent characteristics find themselves exacerbated.

Kelvin Avec takes its inspiration from typefaces which appeared at the beginning of the 18th century, attached to the family of traditional serifs. Its main reference is the Romain du Roi whose creative process is divided into two stages: a conceptual study which is then followed by an adaptation of the designs during the engraving of different sizes.
The Kelvin Sans pays tribute to the typefaces which appeared at the beginning of the 20th century and that we connect to the family of geometrical sans serifs. The observation of typefaces created by Jakob Erbar, Rudolf Koch, Edward Johnston and Paul Renner along with typefaces from promotional advertising documents from the epoch, came to nourish the design process of the Kelvin Sans.