In reply to Offwidth:
> So what does 255 mean in your definition?... its the value of maximum output level for the primary on a particular screen (which will vary slightly from one screen technology to another in hue) with a particular maximum brightness (which varies a lot in screen types so 255 on one screen may be equivalent to 55 on another) so that definition cannot be true in terms of perception.
Well, it's not my definition. It's exactly as you define it. And how one defines 'red' is difficult, agreed. I'd probably cop out and say 'half way between magenta and yellow on the colour wheel' !
http://printingcode.runemadsen.com/assets/color/circle_rgb_small-0bb5fb4944...
>I would describe the bus as a slightly red magenta slightly desaturated as I watch it on my TV (in real life its a subtractive paint system, that absorbs green, that will also vary in perceived colour with illumination).
I'd describe it as very highly desaturated. Probably roughly 50 per cent (in effect something like 255, 125, 125 RGB)
> What she was actually doing was attempting to distract from a dumb decision: you seemingly are following a similar path following your decision to accuse her of colour blindness in your original post !?
Agreed, she's trying to distract from the original dumb decision and all the connotations that 'pink' carries with it. If someone were to ask me to describe the colour of the bus I would say 'pink', not 'desaturated red', nor 'magenta', 'nor desaturated magenta'. Nor 'cerise' (that was funny I thought because it immediately made me think of Cherie Blair … )