Canon EOS 1D Software Instruction Manual page 166

Editing RAW Images
Color Matrix
Reproduces the natural color saturation and tones.
1 Standard
Effective for reproducing the subject's natural color tones.
Reproduces the color tones suited to portraits.
2 Portrait
Effective for reproducing beautifully natural skin tones.
Reproduces the color saturation similar to that in high-chroma color slide
film.
3 H-saturat.
Effective for reproducing clear and vivid color tones.
Processes images so that the color space is compatible with Adobe RGB.
Mainly used for printing for business purpose.
Not recommended for users who do not have a knowledge of image
4 Adobe RGB
processing and Adobe RGB DCF 2.0 (Exif 2.21). With a printer that does
not support the sRGB computer environments or DCF 2.0 (Exif 2.21), the
images are printed with moderate color tone. So, you need to process the
images after shooting.
Reproduces low color saturation.
5 L-saturat.
Effective for making color tone moderate.
The selected color matrix is specified in the RAW adjustment tool palette.
Settings of Color Matrix
Color Matrix
1 Standard
2 Portrait
3 H-saturat.
4 Adobe RGB
5 L-saturat.
You can attach the ICC profile to the image (M-45).
M-42
Details
Color Space Color Saturation
sRGB Standard
sRGB Standard
sRGB
Adobe RGB Standard
sRGB
Color Tone
0
-2
Dark 0
0
Dark 0