Using recolor in Affinity Photo V1.10.8

[marcel_v90]

Hey, I used the recolor function.
It works quite well so far. However, I have a small problem. I want to change this color to a different one. So I have now found the RGB code via the color palette. 
When recoloring, however, I only have one slider to adjust the hue, brightness and saturation. I cannot reach the desired color and always have a small deviation. Is there a trick how I can get 100% of the desired color? 

Thank you very much

[walt.farrell]

1 hour ago, marcel_v90 said:

When recoloring, however, I only have one slider to adjust the hue, brightness and saturation.

If you mean the Recolor Adjustment, you should have 3 sliders, one each for hue, brightness, and saturation; not just 1 slider. Have I misunderstood what you meant, or are you using some other method?

In any case, no, you cannot specify the color using an RGB number with that Adjustment. What you can do, though, is find the color you want via the Color panel, then switch the Color panel to HSL sliders. You can then use the H, S, and L numbers from those sliders in the Recolor Adjustment.

[thomaso]

Workaround: Let the Colours panel display the desired RGB values translated to HSL, then use those for the adjustment.

[HVDB Photography]

In the color palette, the way value definitions are displayed differs from those displayed in the Recolor Adjustment panel.
An easy way to retain that specific color is to add the colour to the swatch panel.
 

[walt.farrell]

4 minutes ago, HVDB Photography said:

An easy way to retain that specific color is to add the colour to the swatch panel.

But how do you use the Swatch in the Recolor Adjustment?

[R C-R]

5 minutes ago, walt.farrell said:

But how do you use the Swatch in the Recolor Adjustment?

Likewise, in AP V1.10.8 how do you use the H, S, and L numbers from the Colors panel in the Recolor Adjustment, where its sliders use ° for Hue & % for Saturation & Lightness? 

[walt.farrell]

5 minutes ago, R C-R said:

Likewise, in AP V1.10.8 how do you use the H, S, and L numbers from the Colors panel in the Recolor Adjustment, where its sliders use ° for Hue & % for Saturation & Lightness? 

Aren't the Color panel numbers also degrees and percent, just unlabeled?

[Old Bruce]

One problem is that the HSL values for Brightness go from 0 to 100 units in the Colour Panel and in the Recolour Adjustment they go from -100 to +100 Percent. 

[marcel_v90]

That was probably my mistake. I should have just switched colours panel RGB Hex to HSL to see the H, S and L information. It can be so easy if you do it right  

[walt.farrell]

2 minutes ago, marcel_v90 said:

That was probably my mistake. I should have just switched colours panel RGB Hex to HSL to see the H, S and L information. It can be so easy if you do it right  

Or, I may have been mistaken in how the HSL values work between the two different mechanisms (based on other posts here).

[marcel_v90]

I think that seems to fit. The L value does not seem to be relevant. I have it set to 0 in the adjustment and in the reference it is set to 55, but the color still seems to be the same. 

Edit: When I checked the color again via the color palette, it now showed me the 55 for the adjusted color at L, although these were not set. So it seems to be ok.

[HVDB Photography]

45 minutes ago, R C-R said:

Likewise, in AP V1.10.8 how do you use the H, S, and L numbers from the Colors panel in the Recolor Adjustment, where its sliders use ° for Hue & % for Saturation & Lightness?

Well, I think that's trial and error to reproduce the exact color, as retained in the swatch panel, which then can be add as a preset.

[R C-R]

26 minutes ago, Old Bruce said:

One problem is that the HSL values for Brightness go from 0 to 100 units in the Colour Panel and in the Recolour Adjustment they go from -100 to +100 Percent. 

For the HSL color model selector in the Color Panel the Lightness & Saturation sliders go from 0 to 100, which I think must be percent; Hue from 0 to 360, which I think must be degrees. In the Recolor Adjustment Saturation likewise goes from 0% to 100%, Hue likewise from 0° to 360°, but Lightness goes from -100% to 100%.

So really the only thing that needs conversion (so to speak) is the Lightness percent ... right?

[Old Bruce]

4 minutes ago, R C-R said:

So really the only thing that needs conversion (so to speak) is the Lightness percent ... right?

Right, sort of. At least according to my limited experiments which seem to suggest leaving the lightness at 0% in the Recolour Adjustment gives good results. For much darker or lighter original colours you may need to subtract/add if the target is dark or bright. Whole other can of worms* if there is a range of tones in the original colour to be replaced.

 

* Ick, worms.