Color Blindness and HP Prime keys color choice

[HP67]

(02-12-2014 09:18 AM)Joe Horn Wrote:  The ALPHA shift key and the alpha letters are dark green.
The left-shift key and the left-shifted functions are light blue.
The right-shift key and the right-shifted functions are yellow.
They seem to me to match just fine. Or are you referring to the slight difference between the dark green ALPHA and the not-quite-as-dark letters? I'm not trying to start a war here ... I'm just wondering why you consider them disturbingly mismatched.

I have my new, still in the plastic 50g in front of me. Your picture shows the green markings much brighter than they actually appear. Yes, they're green, but they're not the same green as the green shift key, which appears to be very dark green.

The blue on the shift key seems lighter than and doesn't seem to match the blue markings on the top/left of each key.

The orange shift key doesn't match the apparently yellow markings on the top/right of each key.

So this is what I mean by disturbingly mismatched.

It could be argued it should be good enough that we get the idea that one green is related to another green and light blue ought to be good enough to tell us the darker blue corresponds to it, and the orange key ought to signal to us that the yellow keyboard markings are what it corresponds to then yes, we can figure it out. But should we have to?

Given the colors are close (somewhat) but no cigar, it is very hard on the eyes and doesn't seem like much thought was given to selecting them. The 48 models, on the other hand, have shift keys that match the keyboard markings exactly.

I believe it would have been a lot better if the colors on the shift keys exactly matched the keyboard markings, and if the keyboard marking colors would have been chosen to be very visible. I don't know how anybody can suggest that light blue markings on an only slighter darker blue background are any kind of a canonical example of legibility.

As it is, the yellow markings appear to be higher than the light blue markings on the dark blue background, which appear sunken. It hurts my eyes to look at it!

Now there is always the possibility that the colors used on the shift keys and on the keyboard are exactly the same pigments or are exactly the same wavelength. Still, that doesn't change the perception that the colors appear different, in context, on the actual device.

Are you looking at pic or do you have one or more blue 50g models in your vast collection? I think the pic looks better than the actual calculator, which is why I bought one in the first place!