Hi folks. I'm trying to make an image that must be limited to a certain number of colors and so I'm drawing gradients manually with a limited number of shades. I'm using the HSL colorspace because brightness gradients are easiest to draw in this space since I can keep hue and saturation fixed and just vary the luminosity. However, I need to use this image for something later that measures the number of colors in RGB space. It seems that Inkscape somehow computes slightly different RGB values each time I use the same set of HSL values. This seems to be random to me and I end up with perhaps three slightly different RGB colors for one HSL color. This is not acceptable for what I need to use the image for later. Is the conversion between HSL and RGB not supposed to be one-to-one? And if this is unfortunately the case, can I somehow work around this without resorting to drawing brightness gradients in the more difficult RGB colorspace? Thanks for the insight.

Can you provide an example in an SVG file? With some quick fiddling I wasn't able to reproduce what you're describing--I may not have been persistent enough.