The standard provides tables for spline sizes, including:
You can find full dimension tables and technical drawings in these PDF guides: din 5463 pdf
That said, if you are designing new tooling or a new broaching machine, you (or the international equivalent ISO 10767 for splines, though hexagons remain national). Do not design new components to DIN 5463 unless you are explicitly repairing an existing system. The standard provides tables for spline sizes, including:
Published in the mid-to-late 20th century and reaffirmed in various editions (most notably the 1976-10 version), this standard specifies the dimensional characteristics of straight-sided spline profiles. Unlike involute splines (DIN 5480 or ISO 4156), straight-sided splines have parallel flanks, making them simpler to manufacture but less optimal for high-stress applications. straight-sided splines have parallel flanks