I've attached a test application, developed in PB 2019 R3

RGB(200, 211, 223) = 14668744 = #DFD3C8

RGB(223, 211, 200) = 13161439 = #C8D3DF

Are you asking how to convert a hexadecimal value in string form to a PB Long datatype?

Thanks John Fauss

Yes, a hexadecimal value to long should do.   I've Chris code [STD Framework] to convert that and it works fine.

The issue is we get different colors on different method of assignment.   

Hex value:  #C8D3DF
To Long:     13161439
To RGB:     RGB(200, 211, 223)

The code

This.BackColor = RGB(200, 211, 223)
This.Backcolor = 13161439

Both the above code gives two different colors.  

What wrong I'm doing?  

Happiness Always
BKR Sivaprakash

Thanks René Ullrich

I've sent modified project with theme settings.

In the theme.json file I've set the window background color to #C8D3DF, which reflects in Window as Greyish color.

for the two static text field, I've set 

This.Backcolor = RGB(223, 211, 200)   And
This.backcolor = 13161439

Which is not greyish.

Any thing wrong I'm doing?

RGB function converts RGB-values into a long value in this way (see help for RGB function):

René Ullrich

Agreed.   My code for conversion

Function of_torgb(value string as_value, ref long al_red, ref long al_green, ref long al_blue)

Long		al_value

al_value = of_tolong(as_value)

al_blue = al_value / 65536
al_value = Mod (al_value, 65536)
al_green = al_value / 256
al_red = Mod (al_value, 256)

Return


Function of_tolong(value string as_hex)

String 		ls_hex	
Integer 	li_loop,li_length
Long 		ll_result = 0

li_length 	= len(as_hex)
ls_hex 		= Upper(as_hex)

FOR li_loop = 1 to li_length																
   ll_result += ( Pos ( '123456789ABCDEF', mid ( ls_hex, li_loop, 1 ) ) * &
						( 16 ^  ( li_length - li_loop ) ) )
NEXT

RETURN ll_result
																			

1.  For #C8D3DF,  I get RGB(223, 211, 200) from the above code, but the site https://www.rapidtables.com/convert/color/hex-to-rgb.html give RGB(200, 211, 223).   Which one is correct?

2.  Setting background color for Window & StaticText object gives two different colors for values #C8D3DF and RGB(223, 211, 200)  or 13161439.  Why ?

Probably somewhere either the code is wrong and the website link is wrong in the conversion.  And / Or the color settings in Powerbuilder for window and static field may also be wrong.  

I agree it can be confusing, particularly for those of us translating between PB and JSON.

From what I've seen, JSON encodes an RGB color value like this: #RRGGBB, or as a 32-bit integer in hexadecimal, 0x00RRGGBB. You can see this in the following link:

https://github.com/bahamas10/css-color-names/blob/master/css-color-names.json

The byte ordering is reversed from what we know and expect in PB, where an RGB color value is represented in a 32-bit integer in hexadecimal as 0x00BBGGRR.

Look at the color value for Red in that web page: #ff0000, or 0x00FF0000, In PB, Red is 0x000000FF.

 Thus, Rene is correct in that you must re-order the RR, GG, BB bytes in a JSON color value to be able to properly translate them to a value that PB understands.