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Your observation is correct. The lightness (the human perception of brightness) of green is larger than the lightness of red. In your example, when you shift the sRGB value 214,73,55 to 55,214,73 (i.e. you rotate the hue from 7° to 127°), the brightness remains constant at 84 % but the lightness is increased. The original sRGB value 214,73,55 corresponds to ...


4

Basically, you want to use a different model. Photoshop reports your red RGB(214,73,55) as HSB(7,74,84) and Lab(52,55,42). Scott's comment is probably referencing the "Hue axis" of the HSB color picker. Lab is supposed to model human perception. There are multiple versions, but for the photoshop color picker, ranges are L=0-100; a & b are -128-127 ...


2

The highlighting of your row could be a solid color instead. If the color uses the whole horizontal space, and your text remains white, you only need to worry about the color looking ok with the rest of the text. For example:


0

There are different colour palette creators, some that help you create your own and some that give you user generated palettes as well, using them you can find other combinations that might work. The main tools I like are Adobe Kuler, recently renamed as Adobe Color CC and Colourlovers


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Since you asked about color theory, I assume you are already aware of color theory and know a little of how it relates to shadows and highlights. If not, take a look at this article which does an excellent job of explaining how to create objects with shadows when painting. We can use this information as a tool for creating similar images as this dress. ...


2

First and foremost: familiarise yourself with the HSB colour model. HSB defines a colour by: Hue: kind of colour, as in: pick one from a rainbow—in degrees; Saturation: inverse of the amount of added white—in percent; Brightness: inverse of the amount of added black—in percent. A good rule of thumb would be to sample the existing brand ...


2

If you have a combination lock like this you have 4 spaces (r) and 10 posible options on each of thoose spaces (n). The formula to get this is called a permutation with repetition, in this case nr 104=10,000 Lets say we have a big 4k monitor 4096x2160 displaying 24bit images. (16,777,216)8,847,360 Lets say the total number of rods are 110,000,000 but ...


3

The human sensory system is a bit complicated to summarize in a Q&A format. But here goes: First you have to realize that there's quite a lot of variation in humans. Hell some people can actually see four colors (see this, for a light explanation), while others only one or two. So to answer the question properly you would have to define what is a human ...


2

The thing with colour is that our brain calculates colour and it can get this wrong at times or autocorrect it depending on the light around. On cameras you will normally find a setting called White Balance and using this you can see exactly how our brain auto-corrects colours. On the white balance mode try setting it to something other than Auto White ...


3

Your question is unanswerable, other than a vague "extremely large number". Defining "uniquely discernable" is not possible. If I show you an all-black 512x512 image, how much white do I need to add until 10 people say "it's different"? If I use Lena instead, and shift the feathers from purple to bluish-purple, where is the change line? If it's a gamma ...



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