I used to use alkanet root stain, but found that this stuff is better. https://www.garrettwade.com/behlen-solar-lux-ngr-dye-stain-gp.html
Non-grain raising, very penetrating, very even coverage, very transparent so as to enhance the grain rather than obscure it, and UV resistant. It is available in Blood Red, Medium Red Mahogany, and several other shades. We use epoxies and PVA wood glues today because they are superior to what was available 100 years ago. We now have wood finishes far better than boiled linseed oil. So it is with this.