16767/16384 is a 2.3.23 subgroup comma. It is the amount by which the octave-reduced 23rd harmonic 23/16 exceeds the Pythagorean diminished fifth (1024/729).

Interval information
Ratio 16767/16384
Subgroup monzo 2.3.23 [-14 6 1
Size in cents 40.00435¢
Name 23 small diesis
Color name L23o1, latwetho 1sn
FJS name [math]\displaystyle{ \text{d}{-2}^{23} }[/math]
Special properties reduced,
reduced harmonic
Tenney norm (log2 nd) 28.0333
Weil norm (log2 max(n, d)) 28.0667
Wilson norm (sopfr(nd)) 69
Comma size medium
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Notation

This interval is significant in color notation as the formal comma to translate a Pythagorean interval to a nearby 23-limit (vicesimotertial) interval.

It is used in the Sagittal notation in the Promethean extension, whose name is the 23 small diesis or 23S ( / ).