Hi,

the nested color inherits the transparency from it's surrounding color.

\definecolor[colA] [r=0,g=0,b=0.01,t=0.2,a=1] % transparent
\definecolor[colB] [r=.278431,g=.235294,b=.545098] % opaque

\starttext
  \startcolor[colA]
    \definedfont[SansBold at 96bp]Titanfall\,
    \startcolor[colB]2\stopcolor
  \stopcolor
\stoptext


ConTeXt version: 2014.11.26 21:43

Maybe intended behaviour, maybe a bug. Donno.


Best wishes,  Peter