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I know that you can tint a color to white and shade it to black but this is not always good enough to me as it can produce very desaturated results.

Also will you take in consideration to have a color scale from red to orange to yellow for instance? It means that the hue of the color will change but as we perceive these colors darker or lighter it kinda makes sense to me.

Since I'm building an app that allows exactly that I'm looking for references regarding this.

closed as off-topic by Zach Saucier, WELZ, joojaa, Luciano, Scott Dec 11 '18 at 17:27

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    Very interesting approach. You might gain some inspiration (especially for your UI look) from a long list of color generator sites – Zach Saucier Dec 10 '18 at 20:18
  • Color splines have been used for ages in the VFX industry. Nothing new here except that your spline is offcourse somehow fixed. – joojaa Dec 11 '18 at 8:31
  • sorry but what kind of feedback do you want? Aside from just promoting your app, general feedback is a bit too broad for GD.SE. – Luciano Dec 11 '18 at 9:34
  • @luciano I need to understand if the app can be useful to generate a color scales. I'm using it but I'm obviously biased. Plus the other feedback about the UI and usability in general are precious to me. For instance I'm going to change the position of the cookie banner and smooth down the experience of selecting s color. – Gianluca Gini Dec 11 '18 at 10:16
  • If you want feedback about the UI please be specific, there are guidelines check here graphicdesign.meta.stackexchange.com/a/682/2611. GD.SE is not a forum but a Q&A site, so feedback questions are sometimes closed as off-topic. – Luciano Dec 11 '18 at 10:48
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Disclaimer: I intentionally did not look at the intro (as I expect many users won't).

Things I noticed are:

  1. I expected to be able to click into the main square to change the "square" color
  2. The selection of "square" color could be visible at all times to smooth the workflow
  3. The swatches could be labeled by more than just the rgb hex code (CMYK, 1-255 etc.)
  4. The export button is hidden by the cookie opt-out banner for me.

Overall, it seems like you went for the sleekest look possible, leaving some of the functionality and ease-of-use behind.

As I am not a professional graphic designer, nor a professional painter, I cannot really give any feedback about usefulness of such an app.

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