: Software or a tool in a software that calculates 75% darker/lighter color of a given color? I am using Inkscape for vector and Gimp for raster graphics. They are quite powerful though open-source.
I am using Inkscape for vector and Gimp for raster graphics. They are quite powerful though open-source.
Can somebody recommend me if there is open-source software like Inkscape or Gimp or maybe a tool inside mentioned ones that can calculate 75% darker color of a given color?
Well 75% is not a requirement, it can be for example 50% or 42%, whatever.
Also could I do the same thing for 75% lighter color or 64% lighter color.
I am building a software and so far I relied on my coded function to calculate given value. But I need to test this function. I need a proof from outside world that this function is calculating the correct value.
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W3schools has a colors picker tool and it has a few different options to modify a colour including the one you are asking for.
Here is the link: www.w3schools.com/colors/colors_picker.asp
You can do this yourself with a calculator and the HSB value of any colour.
HSB = Hue, Saturation and Brightness.
Take the existing brightness value, and add or subtract whatever percentage amount you need, and enter that. Bingo!
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