The Cyotek Development Blog has moved - please find it at

Although these pages remain accessible, some content may not display correctly in future as the new blog evolves.


18-bit RGB palettes are an old format used by VGA displays of yesteryear. These palettes use 6-bits for each of the red, green and blue channels and usually allowed a maximum of 256 colours from the 262,144 unique colours available. This article describes how to read and write 18-bit palette files.

Continue Reading