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I'm not the parent poster, but I am colorblind. The green and red bars of these signs are difficult to discriminate for me, and I suspect many others. The desi
by tomkinstinch 12y ago
I'm not the parent poster, but I am colorblind. The green and red bars of these signs are difficult to discriminate for me, and I suspect many others.
The design could easily be improved by using different colors, since ~10% of males have some color vision deficiency. Few people have deficiency in their short-wavelength cones (blue), so blue/yellow could work, or better still would be simple black and white, or some sort of spatial modulation difference (solid/striped or border/no border).
- comex 12y agoSo the stripes are too faint to make the red areas sufficiently distinct? The obvious problem with an alternate color scheme is that it wouldn't instantly convey 'good or bad' in the way green and red do (to people with adequate color perception).
- tomkinstinch 12y agoThe stripes are too close together, and the contrast is low. They're subtle up close, and difficult to see from a distance. If the spatial frequency were lower (larger stripes) and if they used alternating lines of white and the current color, it might be alright.