Author Topic: Coading - colors (Read 320 times)

Waffle · « **on:** November 15, 2006, 01:59:26 PM »

What do these numbers mean, and how do they relate to RGB, CMYK, ect....

(0.6f , 0.6f, 0.8f, 1.0f)

is is an RGB percentage and and alpha?

in other words..what would one look for to put a certain color in that format?

hitech · « **Reply #1 on:** November 15, 2006, 02:10:25 PM »

r g b a

255 * 0.6

Waffle · « **Reply #2 on:** November 15, 2006, 02:13:15 PM »

thank you ...

I owe you a drink...or a physical therapist

-sudz- · « **Reply #3 on:** November 15, 2006, 02:17:34 PM »

These are RGBA colors - Red Green Blue Alpha

The numbers you see are percentages of a pure color. (1.0f is 100%, or red, green, or blue).

They can also be approximated by 256 colors, but since the numbering starts at zero it's actually 0-255. Therefore, the 0.6f (the f stands for float which is code-speak for a decimal number) is 60% of 255.

Floats are generally used now-a-days since you can have much greater granularity than 256.

Edit: took me too long to reply, HT beat me to it.

Waffle · « **Reply #4 on:** November 15, 2006, 02:25:39 PM »

I like root beer floats and color wheels.

Are there any decent color pickers / converters which display the percentages?

Debonair · « **Reply #5 on:** November 15, 2006, 06:23:07 PM »

what is teh "alpha" thingy for?
i only know about 6 character hex colors for that kinda stuff.....

Pei · « **Reply #6 on:** November 15, 2006, 08:55:24 PM »

Quote

Originally posted by Debonair
what is teh "alpha" thingy for?
i only know about 6 character hex colors for that kinda stuff.....

Transparency

Saintaw · « **Reply #7 on:** November 16, 2006, 04:16:22 AM »

FF plugin colourzilla:

http://www.iosart.com/firefox/colorzilla/

Another coupe of good links:

http://beta.dailycolorscheme.com/

http://www.colorw REMOVE THIS SPACE hore.com/ <---mumbles something about the filter.

This one is hex only, but I use it daily:
http://www.ficml.org/jemimap/style/color/wheel.html

Debonair · « **Reply #8 on:** November 16, 2006, 03:49:04 PM »

Quote

Originally posted by Pei
Transparency

hay kewl, thanx 4 that