Upper bitmap is filled with RGB(232,168,89) color and the lower with RGB(61,114,158) .
Blending results are as follow:
Luminosity in FW CS4: RGB(67,121,175)
Luminosity in PSE 7: RGB(137,190,234)
Saturation in FW CS4: RGB(60,109,158)
Saturation in PSE 7: RGB(41,119,184)
I think PSE uses chroma as saturation and luma Y' 601 with gamma compression (2.2 or 1.8) as luminosity.
So it's compatible with PS. And what about FW. Does somebody know how FW works. I was experimenting with
HLS and HSV and wasn't able to find it out. Maybe FW's modes are better in some web cases, I don't know.
What happens to your blended colors in PSE if you turn off the color profiles?
Fireworks is intended to produce graphics for display in Web applications, which have only recently begun to support color profiles. Even then, you don't want to use them on your page graphics (like nav buttons), because the profiles won't apply to HTML/CSS colors and you'll get mismatches.
PS is primarily intended for photographs and for printing, and so the standard workflow in PS (and I suspect also PSE) is to apply at least a default color profile. One use of color profiles is to correct the colors for printers, but profiles will also change the colors in images.
Have a read:
You're right pixlor but the problem is that FW and PSE has different algorithms of luminosity blending, I think. This process uses numeric RGB values and involves no profiles nor local color management system. Numeric result is always permanent in a given application. There's no problem if we use HSCL blending in PSE only or in FW only. But using them interchangeably may be confusing. Anyway, the visual result is what counts.