RGB colours in .ASE files

[Ghoul Fool]

I'm still trying to work out the RGB values of a single pantone swatch in ASE format, which is discussed here

My swatch is as follows when viewed in hexeditor: 

The colour when imported into Photoshop is RGB 255, 215, 0 or #FFD700 in hex

I can find D7 and (the next) 00 but there is no FF (255 value)? What am I missing?

[davescm · Accepted solution]

The RGB values are not stored directly as Hex. They are stored as 32 bit floating point numbers using a scale between 0 and 1. So each floating point number takes 4 bytes

R 0x3f800000 = decimal 1  

G 0x3f57d7d8 = decimal 0.843137  

B 0x00000000 = decimal 0

multiply each by 255 gives

R 255

G 215

B 0

Dave