Gradient Color Blending and Midpoints

Hi All,

I had a cursory search but couldn't find anything so this is either design 101 or no one else is having the problem.

when creating a gradient in Illustrator or indesign between 2 colors for example Blue and Black or Blue and Dark Blue the blend is not smooth and I can't figure it out. it always seems to transition through some kind of grey at the midpoint for example Blue to Black goes Blue, Grey Black.

At the moment I am working around by creating my Grads in Photoshop and placing them. Creating a CMYK PS file and using exactly the same Pantones and I get a beautiful smooth blend from 1 Blue to the next.

Any ideas??? it's like i need to find a way to cill the mid point so the colours can just spill over each other.

I have gone down the path of creating 2 separate transparency Grads and overlaying them which sort of okay but the PS option is easier. Just sick of importing massive PS files into my AI or indesign Docs.

CHeers

J