Acrobat Professional 8 Text Color Problem

I have a question regarding Text Field Tool In Acrobat 8. I've tried a couple different things and nothing seems to work, I've looked through a bunch of questions on the forum and couldn't find exactly what I'm looking for - if anyone can help I'd be greatly appreciative!

I'm a designer and I'm trying to change the text color in an editable field for a client. The way I've designed the entire flier is for the text to be a specific color blue (C100 M45 Y0 K37 or R0 G58 B111 (- I know you can't ad a PMS color)) and I'd like to keep the editable field the same color.

I've tried both the "Properties" (Apple-E) and I've tried "right-clicking" --> Properties --> "Apperance" --> "Other text color" and here's where I think the problem lies. I can't pull down any menus within the "Colors" Palette? I can move the Gray Scale Slider (but can't change to a RGB or CMYK slider?). I can pick from the "Apple" List, the Image Spectrum, Color Wheel or a crayon color. It looks like these are all prepicked colors and I can't add my own. I know I can't do a PMS color but I thought I'd be able to specify a specific CMYK or an RGB color? Is this just not possible or am I doing something wrong? Please help, thanks!!!