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From Atlas of the Night Sky by Storm Dunlop.
X Cyg, a remarkable long period Mira-type variable, P=408 days, d=346LY. It has an exceptional range of at least 10 magnitudes (with extremes of about mag.3.3 and 14.2). This means that its brightness varies by about 10,000 times between max.and min. Around max., its deep orange colour becomes apparent.
I checked out Chi Cygni tonight and compared it to Eta Cygni and I felt that Chi was marginally brighter. So I guess it could be at approx mag. 3.4. This guessing game is new to me, but this is the best way to learn I suppose.
The colour is beautiful, as it says above, a very orange star.
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