Here are some RGB color codes for use with /char_color_red, green, and blue

Color			R    G    B
---------------------------------
White			255  255  255
Blue			0    64   255
Red			255  0    0
Green			0    255  0
Teal			0    255  255
Purple		255  0    255
Yellow		255  255  0
Orange		255  128  0
Brown			128  100  64
Faint blue-green	128  200  255
Dark red		128  0    0
Dark Green		0    128  0
Green-Blue		0    255  128
Red-purple		255  64   128
Green-Yellow	128  255  0
Dark Gray		128  128  128
Good Blue		0    128  255


Example: To get 'Brown', you would type:

/char_color_red 128
/char_color_green 100
/char_color_blue 64