hexidecimal color inconsistency

[bch33]

I make a graphic in ps and make sure the background on the graphic hexidecimal # is exact same as the one on my web background. When I upload to the web the hexidecimal entered in ps is lighter that the background on web. The only way I have found to get rid of this is to change the monitor res. to something over 16bit. But most computer defaults are set at 16bit so most people will see the inconsistency. This bothers me and I'm just wondering if there is a way to make an exact match.
(I went for transparency but as I said in the other post, it doubled my file size)

Greatly Appreciate any help
bch

 

[AlfieNoakes]

If the screen at less that 16 bit is capable of displaying your background colour it should do the same for your graphic unless something else is getting in the way. How are you saving the graphic? What kind of file? Any dithering? Colour compensation? Optimisation? These are most likely the areas that need looking at. Are you using ImageReady?

Alfie.

 

[zefir]

If the graphic is a JPEG, then it can be expected, that
the actual IMAGE background is slightly different after
compression.
Make a 16x16 pixel background JPEG and use this upscaled
by HTML as page background.
16 bit color mode (instead of 24/32bit) is in most cases
sufficient for photos, but not for fading colors.
Best regards --Gernot Hoffmann

 

[bch33]

Can't say thanks enough---it looks perfect now
grateful,
bch