I LOVE this ink
I've finally purchases a bottle after seeing all the other reviews and comments, and I can say it's awesome. Depending on nib size and paper it'll read differently, from the classic #2 pencil to a grey green or grey purple. It's a well behaving ink and dries in about 5 seconds during regular writing.
Such an interesting shading ink
Sailor 123 is one of the most unique fountain pen inks I own. At first, it looks like a grayish purple but as it dries the complexity of colors really comes out. It can be purple, gray, green, with a hint of blue at all one time. Swatching this ink you really can see all of the different layers. The ink is dark enough to be able to read well and has become one of my absolute favorites. Sailor has really been killing the ink game! If you’re in to interesting shading inks (especially on Tomoe River) you HAVE to add this to your collection!!