Creating a grey (0.5) RenderTexture doesn't output the tight color

Unity Engine
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1

I’ve been trying to create a grey (0.5, 0.5, 0.5, 1) RenderTexture via code doing something like this:

RenderTexture.active = targetTexture;
GL.Clear(true, true, Color.grey);
RenderTexture.active = null;

but this doesn’t work and the texture is always way clearer (-> closer to white) than it should be:
7460302--915826--Capture.PNG
Any idea?
I thought it might have to do wuth the texture format and color space, but i tried everything and it doesnt seem to sort any effect :confused:

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