Guessing the “correct” color of the various Erso garments is an interesting and frustrating effort. I understand why some of the“regulatory” groups want to establish “standards” and look for those who are seeking certification into the groups to adhere to those guidelines. But there is a reason that the standard for the“color” of the essentially “colorless” diamond is graded in isolation against a known white background under a light of a specific “temperature” to ensure repeatable results.
Many people have mentioned how lighting, filters and post-processing all have effect upon the garments. There are several items which also affect our perception of a color but not the color itself. These include simultaneous contrast, colors of any backgrounds, and spectrum of reflected light. Since many individuals were “marching for science” this weekend, I thought I would add some confusion to the color discussion by adding some science of human visual physiology into the mix.
The basics of the underlying concepts are given in the following website. I find this type of information interesting in and of itself but it also helps me rationalize my own decisions if not defend them. Those who are interested may want to look at;
http://www.webexhibits.org/colorart/contrast.html
http://www.color-theory-phenomena.nl/11.03.htm
https://en.wikipedia.org/wiki/Checker_shadow_illusion
To the best of my knowledge no one has examined Jyn's individual garments in isolation. We always see them in immediate relationship to something else, most often the other garments. There are a few examples of the shirt alone (against skin-tone), but the vest is always shown over the shirt or over the shirt and jacket, and the jacket is always shown over the shirt and under the vest. This provides us the relationship of Vest on Jacket on Shirt or Brown on Green on Gray.
Since one the most recent discussions has been the color of the jacket I thought I would add my thoughts. When the Brown Vest (which is a mix of Red-Black-Yellow, or a shade of Orange) is in simultaneous contrast with a Green Jacket, the eye will perceive the Brown to“induce” more the opposite of Green, that is Red, into the Brown making it appear a warmer hue of Brown. At the same time and the Green will “induce” the opposite of Orange, that is Blue into the Green making it appear a cooler Blue-Green. Since both colors are on Gray background, which tends to absorb the full spectrum of colored light, this will tend to darken or “tone” down both colors. Making both the Brown and Blue-Green appear darker.
Adding too much Blue to the Jacket may cause you to “overshoot” the hue you are looking for.
The effect of background may also be evident in the shirt color as when it is shown just against Felicity's light Peach skin-tone. In this situation the shirt can appear as a darker shade of Gray which has shifted toward Blue.
Picking a shirt fabric which looks correct in the fabric store may become too Blue and too dark when placed in combination with the other garments.