Here is one that I did - it's a dark (mostly black) theme with purples.
https://i.imgur.com/EzwXTgd.jpg
header, footer, side/navigation bars
collapsed all menus border (opaque): 663160
collapsed top-left menu hover: 21101F
footer hyperlink text: 5C3B87
header and footer background: 141414
header and footer text: 9E9DB5
side menu 1, notification section background: 21101F
side menu 1, notification section background, hover: 3F3C47
side menu 2, thread or main menu section background: 21101F
side menu 2, thread or main menu section background, hover: 3F3C47
side menu 3, game navigation and search section background: 21101F
side menu 3, game navigation and search section background, hover: 3F3C47
side menu 4, your account section background: 21101F
side menu 4, your account section background, hover: 3F3C47
side menu link: E0E0E0
side menu text: E0DFDE
side menu, border bottom (opaque): CCC4AB
standard text: 49FFEB
top menu background: 141414
top menu, hyperlink hover background: 21101F
top menu, hyperlink text: C38CD1
top menu, separator (opaque): 050505
Overall site settings
button background (gradient): CB96D9 58415E
button background, clicked (gradient): FFFFFF CCCCCC
button background, default when multiple (gradient): EEEEFF CCCCDD
button background, default when multiple, hover (gradient): EEEEFF DDDDEE
button background, hover (gradient): 1D0433 785C72
button border (top & left, bottom & right): CCCCCC AAAAAA
button border, clicked: 646EC4
button border, hover (top & left, bottom & right): AAAAAA 888888
button text: F7F7F7
button text shadow (opaque): AAAAAA
button text, hover: FFC582
die roller borders: 92836F
help tip background, hover (opaque): 543B38
help tip border, hover: BB5555
help tip shadow, hover: AAAAAA
help tip text, hover: FFCCCC
horizontal line (opaque): 8A8A8A
hyperlink in body content: 9363DB
hyperlink in body content, hover: 1D0433
information boxes, alert background: 9748DB
information boxes, border (opaque): D6BA9F
information boxes, default background: 221D2E
information boxes, primary background: 2E3236
information boxes, secondary background: 27382A
information boxes, success background: 0A5C05
information boxes, text: FFFFFF
information boxes, warning background: F07000
legend (at the bottom of pages) background: 141414
main background: 141414
maximum page width (1,000 to 2,000): 1350
on/off toggle button selections, background on hover: 66BB66
on/off toggle button selections, background on hover disable: BB6666
on/off toggle button selections, background on hover neutral: 777777
on/off toggle button selections, background on selected: 55CC55
on/off toggle button selections, background on selected disable: CC5555
on/off toggle button selections, background on selected neutral: 555555
on/off toggle button selections, border: 444444
on/off toggle button selections, border on selected: 448844
on/off toggle button selections, border on selected disable: 884444
on/off toggle button selections, border on selected neutral: 444444
page background: 141414
stand out heading background: 522020
stand out heading text: EBEDE1
standard text: D9D9D9
User generated content (within posts, sheets, descriptions, rMail etc)
background colour for table headers: 636363
Messages, characters, sheets and descriptions
background colour: 141414
background for message details when collapsed: 5C5C5E
background for top and bottom page navigation bars: 4A4A4A
content background: 141414
divider between messages (opaque): E1CAE3
horizontal bar between links in message info: 836B59
private lines within messages: C84000
quote background: 5D5D5F
quote border: CCCCCC
system messages border top (opaque): 422E2C
text for top and bottom page navigation bars: D6D6D6
text colour: 8C8C8C
your name in message information: 401E8F
Thread lists (game threads, private threads, rMail)
thread list, border around each thread (opaque): E6BB9C
thread list, row background (even row numbers): 303030
thread list, row background (odd row numbers): 212121
thread list, row hover background: 000000
Miscellaneous
colour for unread private messages, best if a blue: 104582
colour for unread public and private messages, best if a purple: 46277D
colour for unread public messages, best if a red: FF4570
main menu adult rated games, best if a red: FF4570
main menu game list for the line under each game (opaque): B8B8B8
main menu game list hover: 4A4A4A
main menu game list text: CB92F7
main menu rated ming, best if a green: 008000
main menu underline for headings (opaque): 6E6E6E
main menu, support RPoL section: 353633
main menu, support RPoL section, hover: EDA29E
stickylist background: 000000
stickylist hover: A4ABA1
My theme is generally dark