The Wikipedia have two black logos.
One of it is in png format
and the other one is the old logo in svg format
More about old logo and new logo you can find at
I have now taken the white svg logo and have changed all #ffffff to #000000 http://svgur.com/i/1bs.svg
Is the resulted one then the real Haiku black version or differs it in some points.
Still missing a place, where you publishing Haiku logos for download.