Preserved Topic: Color Matching... (Page 1 of 1)

I know this is a very simple question and I am sure it has been asked 100 times. I would search but I have to be off to eat for my mothers Birthday so I wanted to get the post off before I left.
I am trying to figure out why using color 36/36/36 as a webpage background..then using it in a image in photoshop..ends up not matching in The browser at 16bit. But does at 32bit. I am needing ANY help when it comes to making decent transpaent images or color matching of this nature. Thanks in advance!

Sounds like it might be a base-10 and base-16 problem. You know, decimal vs. hex.

For example, 36 = #24.

So, RGB: 36,36,36 is equivalent to #242424.

(and #36 = 54)





[This message has been edited by warjournal (edited 09-01-2002).]

It has something to do with the way the browser handles colors. In 16 bit, it has to round them off to colors that it's able to show, and it treats images differently when it does this, somehow.

There's nothing you can really do about it. You can correct it to look ok in 16 bit colors, but then it won't look good in 32 bit. I usually just work with 32 bit and don't worry about it.

Perhaps if the background color and image color are a web-safe color, it will work?

I think that Slime may have a point...read this http://www.lynda.com/hex.html

It seems that 8-bit color does make a difference...Doc, you have more experience in this area...is this actually true?

If so, then this question acually does have a point...but which browsers/graphic cards nowdays actually work with 8-bit colors?

Very interesting...thanks for posting...

More to the point...is the handy (cell-pnone) the 'wave' of the future? Who out there actually designs their web sites with them in mind? I was not aware that they used 8-bit color...is this going to be a problem in the near future?



[This message has been edited by WebShaman (edited 09-01-2002).]

I was always of the opinion that 16-bit colour meant that you could display any of the full 32-bit colour range but you could only display 256 of those colours on screen at any one time. Which meant anything in between gets dithered or rounded to the nearest color. But that's just what I've heard.

The easiest way round this seems to be using a single color image for the background. Also for some reason web browsers seem to match .gif colors and #hex values very well in 16-bit colour mode. Maybe it has something to do with .gif having a 265 colour pallet as this rarely happens when using .gif images.

WS, I think it was you who mentioned that my GN sig didn't match the forum background a while back. Well it actually does, but only if you have your display set to 32-bit color because it's a JPEG, not a gif. If I saved the same file right out of Photoshop as a .GIF then it would match on both 16-bit and 32-bit color displays.

But arr yah, try using a single colour image for your background (both gif and jpeg) if your having problems. Otherwise, just slip in a little "32-bit colour depth display is recommended for viewing this website" or something to that effect.

Drac, what you described in your first paragraph, I believe, is 256 color mode.

Oh yah, it is to... oops... silly me. But the same things happens to a lesser extent with 16-bit mode. Round down from millions of colours to thousands of colours... whatever the exact numbers are I forget. 256 colour mode isn't as ugly as I thought, must have been thinking 256 colour mode was actually 16 colour mode... my bad.