I got it figured out. Thank you for looking at this. For anyone who needs this information, see below
Code:
-- where CHANNEL is SAY, PARTY, YELL, ...
-- if you want a custom global channel you need to use CHANNEL1, CHANNEL2, ... CHANNEL10
local channelInfo = ChatTypeInfo["CHANNEL"]
print(channelInfo.r, channelInfo.g, channelInfo.b)