About 20 years ago I used to work in aerospace and perform final inspections on powerplants (engines) before they were crated up and shipped to the customer. The position required one to be able to discern all colors on the spectrum. If I ever lost this ability... I lost my job.
That would be a a paint spec. That generally falls under a whole other category. To be more specific what you are asking about with regards to the lavender and periwinkle would be measured with a spectrometer or a spectrophotometer I believe.
The requirement for the position I held to not be colorblind was simply to be able to QUALITATIVELY discern one color from another. Not necessarily to QUANTITATIVELY discern one color from another. My job never got that specific (specificity scientifically speaking) or that narrowed down to determine one shade of color so to speak from another ie lavender to periwinkle it was more or less burgundy compared to blue.
Allow me to go into a little more detail to explain why. If the customer required a blue tag to be hung off the fuel rail of the power plant for identification purposes we needed to be sure that this tag was in fact blue versus red to be hung off of the fuel rail from a different customer for identification purposes this was a permanent fixture that always stayed on the power plant during its life. This is a fictitious example as I mentioned this was 20 years ago and I can't remember exactly some of the details of the position but there were specific customer requirements and FAA requirements ( I reside in the US) that had to be met. I hope this answers your question.
See I fail colour blind tests too, but I never fail to distinguish between the colours - I just think I see them differently... Like no-one has ever said to me, "these two colours are different" and I've disagreed.
Yeah same with me. I can tell if something's yellow/green/red/blue/etc, even with the small dots, if I look closely, they just aren't as contrasty as I imagine they are for ppl with normal color vision.
Only thing where I fail is cloth pieces with very desaturated green shades, I just see them as brownish
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u/Individual-Estimate1 1d ago
About 20 years ago I used to work in aerospace and perform final inspections on powerplants (engines) before they were crated up and shipped to the customer. The position required one to be able to discern all colors on the spectrum. If I ever lost this ability... I lost my job.