4 ms·
As long as we're talking about shades of blue: https://en.wikipedia.org/wiki/Prussian_blue https://en.wikipedia.org/wiki/Prussian_blue
by jd3 11y ago
As long as we're talking about shades of blue:
https://en.wikipedia.org/wiki/Prussian_blue https://en.wikipedia.org/wiki/Prussian_blue