We have a poster print we're trying to accomplish that's giving us a few headaches..
I've attached a blending simulation of what we're going for. The blends that are produced digitally match exactly what's happening once printed. There is very little variation in the shade of blues in the three simulations, but as you can see, the difference in the blended color is huge! Quite mind-boggling.Image - TinyPic - Free Image Hosting, Photo Sharing & Video Hosting
The two colors we are to blend are:
Process Cyan + Warm Red to achieve a dark green. Which, in Illustrator works just fine. But, as many of you already know, 'computer cyan' is much, much different than the Speedball cyan straight out of the can. When we overprint the 'warm red' (that has transparent base added to it @ about 15%-25%) on top of the process cyan, we're getting a purple. Which makes total sense.. Blue + Red = Purple.. We've tried lightening up the cyan, which just made the purple lighter in tone. We tried adding more yellow to the warm red, because yellow + blue = green with no luck either. I'm beginning to think it's just the difference between 'computer cyan' and actual cyan ink.
Here's a picture of the digital proof we are to match: Image - TinyPic - Free Image Hosting, Photo Sharing & Video Hosting
Here's a picture of the printed proof that's coming out purple-ish: Image - TinyPic - Free Image Hosting, Photo Sharing & Video Hosting The left image is printed using straight cyan ink + white, to achieve a light cyan. The one on the right is straight cyan, which blends to make a darker purple..
Any insight would be great! Hopefully someone's had this problem in the past before trying to blend similar colors.