A humanist sans serif font designed by Steve Matteson.
Open Sans was designed with an upright stress, but still feels humanist due to its open apertures, double-decker g, and humanist italic. It has a similar x-height to Verdana, but has a lighter stroke weight, and even more clarity (legibility) at smaller sizes. The bold feels a bit heavy, but retains legibility. There is also a semi-bold for use when the bold is too heavy.