pat.boller9 months ago000How high is the luminosity of a colour?Show in original language (German)Funkyman9 months ago000Sorry, I can't say because I can't measure it. But depending on the colour tone, half or even less with very dark colour tones (felt)Show in original language (German)Commentpat.boller9 months ago000I realise that it's less than white - but how much?Show in original language (German)Comment