I don't understand the question.
There is no such thing as a "modern palette".
All palettes are "old".
"Modern" images don't use palettes.
1/ If you are looking for UFO palettes in a format that can be loaded into photoshop or other programs, you can find them in the OXCE distribution directly.
For example ACT format palettes (for Photoshop) are in /common/Palettes/UFO-ACT-SAFE/*.act for example PAL_GEOSCAPE_SAFE.act
2/ If you want to know raw RGB codes, you can read them as plain text in the JASC format files...
... they are in /common/Palettes/UFO-JASC/*.pal for example PAL_GEOSCAPE.pal
The file contains 259 rows, the first 3 rows is the header and the next 256 rows are the color RGB codes