I have a hex (i.e. #FF0000) color and want to generate 50% transparent 50x50 image using imagemagick from command line.
+1
A:
I had to figure out something similar when I was working with CSS 3 and RGBA.
convert -size 50x50 xc:'rgba(255,0,0,0.5)' red_0.5_pixel.png
David Dorward
2009-11-24 11:42:40