Latest version of 6.4.3-7 beta
Seems to be working fine now:
convert -size 1x1 xc:"rgba(100%,75%,50%,0.25)" -depth 8 txt:
# ImageMagick pixel enumeration: 1,1,255,rgba
0,0: (255,191,127, 64) #FFBF7F40 rgba(255,191,127,0.25098)
convert -size 1x1 xc:"rgba(100%,75%,50%,0.25)" -depth 8 txt:
# ImageMagick pixel enumeration: 1,1,255,rgba
0,0: (255,191,127, 64) #FFBF7F40 rgba(255,191,127,0.25098)
convert -size 1x1 xc:"hsla(180,100%,50%,0.25)" -colorspace rgb -depth 8 txt:
# ImageMagick pixel enumeration: 1,1,255,rgba
0,0: ( 0,255,255, 64) #00FFFF40 rgba(0,255,255,0.25098)
convert -size 1x1 xc:"cmyka(100%,100%,0%,50%,0.25)" -colorspace rgb -depth 8 txt:
# ImageMagick pixel enumeration: 1,1,255,rgba
0,0: ( 0, 0,127, 64) #00007F40 rgba(0,0,127,0.25098)
convert -size 1x1 xc:"#fe9843ca" -depth 8 txt:
# ImageMagick pixel enumeration: 1,1,255,rgba
0,0: (254,152, 67,202) #FE9843CA rgba(254,152,67,0.792157)