LAB color box

[cj-does-stuff]

I would love to use LAB color more, but find selecting relative colors in LAB space to be overly difficult. It would be great to have a proper LAB color box in V2.

I'm currently using V1, there is an HSL color box, and I did not find any LAB color box documentation. The HSL color box works, but alters lightness unintuitively (HSL and LAB lightness are different).

Example:

The box colors are very rough estimates. I have a* is on the x axis, b* is on the y axis. b*+ should be more yellow, and every color should have equal perceived lightness.

[GarryP]

I’m not able to get the Colour Panel of Photo (either 1.10.6 or 2.5.5), on Windows, into the configuration shown in your screen-grab, with the box showing and “LAB” selected in the drop-down.

Can you describe how to select that configuration and give us a full-screen (whole application UI) screenshot showing your Colour Panel in that configuration and where we can also see your Layers Panel and the Tool you have selected?

[NotMyFault]

I assume the screenshot is a mockup of what he wants to get, not a screenshot of the current version.

[GarryP]

Ah, that would explain why I can’t get the Panel into that state, and maybe what had happened to the little ‘circle thing’ at the top-left of the colour box in the image.

Since I don’t use LAB colours I’ll bow out of the discussion at this point.

[NotMyFault]

I like the request and would add that out-of-gamut areas (relative the current Display capabilities) should optionally be marked in a suitable way, eg by a curve marking the limits of sRGB, Display P3 etc within the area.