Set color in my app is not the same in the modelviewer editor.

[AYTSistemas13]

When I set the color with the function modelViewerColor.model?.materials[29].pbrMetallicRoughness.setBaseColorFactor(colorString);
Is not the same that I saw and pick in the editor in modelviewer.dev.
Here is a screenshot in the modelviewer.dev editor:

And here is a screenshot in my project, the color is the same in RGBA format but for some reason when the app display the color is more soft:

I tried everything and I can´t fix this, I don´t know if i´m doing something wrong.

[elalish]

Same issue as #3906.

[AYTSistemas13]

Ok I got it but in the next function when I set the color in my case is:
modelViewerColor.model?.materials[29].pbrMetallicRoughness.setBaseColorFactor(colorString);
.setBaseColorFactor(colorString) expects an element RGBA, how or in which part of my code I need to use this function by three js .convertSRGBToLinear ().
My model-viewer is part of an Angular project.
What I need to do in this case?

[AYTSistemas13]

I forgot to mention in the principal issue that I already divided the first three numbesr of rgba code color by 255, in the example I passed in a function the complete decimal number for example (.38712737123812,.182093809182093,.182318093123,1) and still the color was not the same.

[AYTSistemas13]

For now I just use this online tool, https://ajalt.github.io/colormath/converter/ to put the rgb color and then the tool displays different formats and I took the color codes from Linear sRGB and now the color match with the model viewer editor. Thanks.