


The standard LaTeX document classes -- article, report, and book-- provide the following definitions of the directives \huge and \Huge:

  • If the main font size is either 10pt or 11pt,

  • and if the main font size is 12pt, one finds



Next, in the file latex.ltx (which contains the "LaTeX kernel"), one finds the following definitions of \@xxpt and \@xxvpt:


The geometric mean of 20.74 and 24.88 is 22.72, and the geometric mean of 25 and 30 -- the baseline distances in effect for \huge and \Huge -- is 27.38. (See below for an explanation of why I choose the geometric mean.)

Thus, if you use either 10pt or 11pt as the size of the main text font, and if you use a font that's freely scalable, you could include the following instructions in your document's preamble to set up the directive \semiHuge:



Putting all this into an MWE, e.g.,

\RequirePackage{fix-cm} %% make CM font freely scalable
\huge The quick huge fox jumps \ldots

\semiHuge The quick semiHuge fox jumps \ldots

\Huge The quick Huge fox jumps \ldots

one gets:

enter image description here

Lastly, you may ask why I take the geometric mean of the \huge and \Huge font sizes to arrive at the font size for \semiHuge. For a main text font size ("\normalsize") of 10pt, LaTeX sets the ratio of adjoining font sizes -- \normalsize, \large, \Large, \LARGE, \huge, and \Huge -- is exactly 1.2. In addition, in LaTeX the exact font size for 11pt is not 11.00 but 10.95, i.e., the geometric mean of 10 and 12. LaTeX's evident preference for keeping relative font sizes in tidy geometric progressions is what swayed me to go with the geometric mean of the sizes for \huge and \Huge to obtain the size for \semiHuge.

Left as an exercise for the reader: Design macros named \semiLarge, \semiLARGE, and \semihuge. :-)

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