Converting NTSC palette choice into PAL values?

[jmccorm]

As an example, I have selected a medium-high color red from the NTSC palette, which I believe is $48.

 

4 = Red

8 = Medium+ intensity

 

Is there a simple formula that will alter $48 into an appropriate PAL color value?

Is there a more complex formula or table which better maps into PAL color values?

 

I could not easily find an answer to this question in the usual references. I'd like to go as far as I can in making sure that things look right on a PAL display.

 

Thanks,

jmccorm

[Wrathchild]

There have been a few threads in regard to this.
I think the general consensus was that, for the range of NTSC from $2x to $Ex (maybe even $Fx) you simply subtract $10, as seen in the snippet below from DropZone.

For the PAL palette you see that the $1x and $Fx hues are interchangeable, on the NTSC this is more the $2x and $Fx bands.

Hope that helps.

.if NTSC=0
GROUND_DARK = $26
GROUND_LIGHT = $2A
COLOR_GREEN = $B8
COLOR_RED = $36
COLOR_BLUE = $76
COLOR_BROWN = $18
COLOR_YELLOW = $1C
COLOR_PURPLE = $6C
.else
GROUND_DARK = $36
GROUND_LIGHT = $3A
COLOR_GREEN = $C8
COLOR_RED = $46
COLOR_BLUE = $86
COLOR_BROWN = $28
COLOR_YELLOW = $2C
COLOR_PURPLE = $7C
.endif

Edited February 17, 2018 by Wrathchild

[jmccorm]

 

There have been a few threads in regard to this.

I think the general consensus was that, for the range of NTSC from $2x to $Ex (maybe even $Fx) you simply subtract $10, as seen in the snippet below from DropZone.

For the PAL palette you see that the $1x and $Fx hues are interchangeable, on the NTSC this is more the $2x and $Fx bands.

 

Thank you for taking the time to package that information all up once again. I'm certain to find it useful!

 

You tickled one other piece of information that I copied down, but neglected to document the source. It said that while PAL users were pretty safe in using in of their color choices, NTSC users may want to steer clear of using $F. The reason given was that the higher color numbers were most affected by the color pot on the motherboard. I have a quote as: "In NTSC, Lowered number hues have the least differences, higher have the most."