Black & Brown Led.

ok, sound silly.
i am looking for option for led to be Black -or Brown
i can try use orange color as `Brown`
but i also look for solution for `black` color
that will not block all light

i want to make it, kind of `Very Dark`
but not using dark blue led
cause i am using also `blue` led

my goal is project that use 7 wire's cable
so, let's say blue wire active, blue led is on.
etc. etc. etc.