Colors of Olympic plates

[matjusm]

I have been trying to find what are the standard colors of Olympic plates according to weight but I have yet to find a site that clears it up for good so I was wondering if anyone can help me.
I know that with the bigger plates, it goes like this:
25 kg- red
20 kg- blue
15 kg- yellow
10 kg- green

But what comes after that?
The gym I go to has the same color scheme for lighter plates and it goes like this:
5 kg- red
2.5 kg- blue
1.25 kg- yellow

There is also a 50 kg plate that is green.
I just wanted to know whether this green-red-blue-yellow and then again green-red-blue-yellow progression in weight plate colors is a standard of is this something that was simply done at the discretion of the manufacturer?

[kbdub]

The IWF uses the following color scheme:

25 kg red
20 kg blue
15 kg yellow
10 kg green
5 kg white
2.5 kg red
2 kg blue
1.5 kg yellow
1 kg green
0.5 kg white

This is a set scheme and not done at the discretion of the manufacturer.

[matjusm]

The IWF uses the following color scheme:

25 kg red
20 kg blue
15 kg yellow
10 kg green
5 kg white
2.5 kg red
2 kg blue
1.5 kg yellow
1 kg green
0.5 kg white

This is a set scheme and not done at the discretion of the manufacturer.

Thanks, thats the info I was looking for. Seems that the plates at my gym were colored at the discretion of the manufacturer.

[triplechris]

Yea when plate makers do plates in pounds (bumper or not), it gets all screwed up. It seems to go:
45lbs = red
35lbs = blue
25lbs = yellow
10lbs = green

Annoying.