Good morning, Code Monkey-san.
Sorry to bother you.

http://qb5.2ch.net/test/read.cgi/operate/1404225596/7
A plus board user picked colors for bbynews. I think it's good.

Have a good day!

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It is easy to understand intuitively that it match the color coding of 2nn.
http://www.2nn.jp/
newsplus #000080
mnewsplus #ffa500
news4plus #ff0000
bizplus #008000
news5plus #0000ff
scienceplus #808080
femnewsplus #a52a2a
moeplus #ffc0cb
dqnplus #d1bada

The following six and either may be the all black because of the number of occurrences small amount.
wildplus #000000
liveplus #000000
snsplus #000000
news4plusd #000000
editorialplus #000000
owabiplus #000000