カラーのバグ

[T.N]

 

Affinity Designer for Ipad v2 を使用しています。

 

カラーを指定しましたが、違う色が出てしまいます。

#F4FFF6 白のはずが緑

#FFFFFF こちらの白は灰色

バージョン1の時は、このような事が無かったので困っています。

原因はなんですか?

 

カラーバグ.afdesign

[NotMyFault]

I tested both V1 and v2 and got identical results.

When you assign a color to an embedded or linked file, the color will only be identical in RGB values if the luminosity of the embedded image is identical. 
 

For a test,

1. create a rectangle of 256px
2. and use a black  tom white gradient.
3. Export as PNG
4. create a new document
5. embed the PNG
6. add a rectangle 256px x 80 px
7. arrange both to slightly overlap in position vertically
8. group both layers
9. now use the color panel to assign various colors. This will impact both layers simultaniously.

you will see that colors match in exactly in one of the 256 columns (if at all).

So if you have a png with uniform color and luminosity, you cannot get one specific color, the range of colors is limited by the luminosity of your source image.

you can use other methods to get the desired results.

 

 

[NotMyFault]

Your source image luminosity is 74%

your chosen color F4FFF6 luminosity is 98%

so both will match only at 98% and not 74%

 

[NotMyFault]

To explain it differently: even if you use a very light color with 98% and assign it to a linked PNG, the luminosity of the result will be that of the PNG, 74% in this case.

to get perfect results, you need to use e.g. an hsl adjustment to correct the luminosity first, before changing the hue/saturation.