I guess it should be the message length of your example, concatenated:
Code:
|cF27C7C1|r|c71DE732|r|cF27C7C3|r|c71DE734|r|cF27C7C5|r|c71DE736|r|cF27C7C7|r|c71DE738|r|cF27C7C9|r|c71DE731|r
--Error message here
11 characters for each block X 10 = 110 characters in total?
Maybe it is longer if you only use characters without the color statements, just check it by adding 1234567890123456789012345678901234567890.... blocks