I'm producing a poster where I want purplish black stripes on a rich black background. This is the background of the poster and I don't want it to be too visible, only from say 6 feet. I'm using c60 m40 y40 k100 black, anyone know what cmyk values for the stripes could work?
I'm using a c90 m100 y20 k10 purple in the design so I'm thinking maybe c90 m100 y20 k60 ?
Are you basing your decision on what you see on your monitor? Or have you actually done calibrated proofs on the deviations? How thick a line are we talking about? What type of printing are we talking about?
"I'm using a c90 m100 y20 k10 purple in the design so I'm thinking maybe c90 m100 y20 k60 ?"
No, I'd stay with the 90C, 100M, 20Y, and 10K for the stripe(s). Otherwise, stripes are pointless. Well, they will be hard to distinguish from the background as it is, so going with a 60%K is not what I would recommend. Maybe 30%K, but no more than that.