and there are these ones:
- tms9918 (Colecovision, Sega-sg1000, msx1, ti-99/4a, etc.): https://en.wikipedia.org/wiki/List_of_8-bit_computer_hardware_palettes#Original_... - "000000".."000000".."3EB849".."74D07D".."5955E0".."8076F1".."B95E51".."65DBEF".."DB6559".."FF897D".."CCC35E".."DED087".."3AA241".."B766B5".."CCCCCC".."FFFFFF"
- Sega Master System legacy display modes: http://www.smspower.org/Development/Palette#MasterSystemMarkIII - "000000".."000000".."00AA00".."00FF00".."000055".."0000FF".."550000".."00FFFF".."AA0000".."FF0000".."555500".."FFFF00".."005500".."FF00FF".."555555".."FFFFFF"
- Thomson mo5: https://en.wikipedia.org/wiki/List_of_8-bit_computer_hardware_palettes#Thomson - "000000".."FF0000".."00FF00".."FFFF00".."0000FF".."FF00FF".."00FFFF".."FFFFFF".."BBBBBB".."DD7777".."77DD77".."DDDD77".."7777DD".."DD77EE".."BBFFFF".."EEBB00"
- Apple II: https://en.wikipedia.org/wiki/List_of_8-bit_computer_hardware_palettes#Apple_II_... - "000000".."6C2940".."403578".."D93CF0".."135740".."808080".."2697F0".."BFB4F8".."404B07".."D9680F".."808080".."ECA8BF".."26C30F".."BFCA87".."93D6BF".."FFFFFF"
- Intellivision: http://atariage.com/forums/topic/196007-intellivision-font-bitmapcolor-palette-p... - "000000".."0000FF".."FF0000".."CAFF64".."008000".."00FF00".."FFFA17".."FFFFFF".."808080".."FFB200".."00FFFF".."7F7F00".."FF3FFF".."7F7FFF".."80FF00".."FF007F"
- MacOS Classic 4.1 in 16 colours mode: https://en.wikipedia.org/wiki/List_of_software_palettes#Apple_Macintosh_default_... - "FFFFFF".."FFFF00".."FF6600".."DD0000".."FF0099".."330099".."0000CC".."0099CC".."00AA00".."006600".."663300".."996633".."BBBBBB".."888888".."444444".."000000"
- Acorn RiscOS (i didn’t know this one) - https://en.wikipedia.org/wiki/List_of_software_palettes#RISC_OS_default_palette - "FFFFFF".."DDDDDD".."BBBBBB".."999999".."777777".."555555".."333333".."000000".."004499".."EEEE00".."00CC00".."DD0000".."EEEEBB".."558800".."FFBB00".."00BBFF"
- SGI Irix 4DWM (used on those known vectorial icons around early 90’s - https://darkdoomer.deviantart.com/art/da-motherfuckin-irix-icon-set-179568520 ) seems also a great palette, i guess it’s something like "000000".."FF0000".."00FF00".."FFFF00".."0000FF".."FF00FF".."00FFFF".."FFFFFF".."555555".."C08080".."80C080".."808040".."8080C0".."804080".."408080".."AAAAAA"
there might be more interesting palettes around, like that one Mojón Twins used on their ula-plus zx-spectrum games: : http://www.mojontwins.com/juegos_mojonos/subacuatic/ - - "000000".."00006F".."902500".."6F00FF".."00B56F".."0090FF".."FF9000".."B5B590".."000000".."0000FF".."B54A00".."B54AFF".."6FFF00".."6FB5FF".."FFFF6F".."FFFFFF"