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Just a guess on the final answer, since all the legwork was accomplished by @BennettBernardoni and @IlmariKaronen...

Is it

1955

As shown above, there are 4 columns of 5 letters, and the word MeRCY. Since the 'e' is lowercase, we'll ignore it and just use MRCY.
This puzzle is all about colors, so I'll take that as Magenta, Red, Cyan, and Yellow. Taking the respectively colored number out of each column produces 1955.