Your tan bag has gone blotchy after a few years, or you've decided you'd really rather have black. The obvious question: can't I just dye it? You can. But you can only dye leather in one direction, which is darker, and the result depends more on preparation than on the dye itself.
Can you dye leather? The short answer
Leather dye isn't wall paint. Most leather dyes are translucent: they soak into the fibres and mix with whatever colour is already there. Brown over tan gives dark brown, black over green gives black with the occasional green cast. Making a bag darker works well. Turning a black bag beige with dye never will.
If you want to go lighter, you end up with opaque leather paint. It sits on the surface as a layer, like the trainers people customise. On a bag that flexes and rubs all day, that layer will crack in time, especially at the handles, folds and corners. For a bag you carry every day, I wouldn't do it.
How vegetable-tanned leather reacts to dye
Vegetable-tanned leather is tanned with tannins from tree bark and wood. It's open and absorbent, which is why it darkens in the sun and develops a patina. That same quality makes it tricky to dye. It takes colour quickly, but unevenly. Where the bag has been handled a lot there's more skin oil, and dye penetrates less there. Where the grain is a little more open, it goes deeper. The result is rarely perfectly even.
Chrome-tanned leather with a dense finish has the opposite problem: the dye just sits on top. You have to strip that top coat first with a deglazer, and that's exactly the step where most attempts go wrong. So the difference between vegetable-tanned and chrome-tanned leather also decides how a bag responds to dye.
One more thing. Vegetable-tanned leather keeps darkening in light after you dye it. A bag you take from tan to mid-brown will carry on getting darker in the sun, just as before. How that works, and what to do about a light side and a dark side, is covered in our piece on leather bags faded or darkened by the sun.
Which colour changes work, and which don't
| From | To | Doable with leather dye? |
|---|---|---|
| Natural or tan | Dark brown | Yes, the most predictable change |
| Tan | Black | Yes, but it takes two or three coats |
| Beige | Tan or brown | Fair, old marks often show through |
| Green | Black | Fair, some green may stay visible in the seams |
| Dark brown | Tan | Not with dye, only with opaque paint |
| Black | Beige or white | Not realistic |
| Suede | Darker | Only with a dedicated suede dye, and the nap gets a bit stiffer |
The stitching usually won't take the dye. Polyester thread barely absorbs leather dye, so a tan bag with light stitching keeps its light stitching after dyeing. That can look good. It can also look as if someone gave up halfway.
How to dye a leather bag, step by step
If you're doing it yourself, practise first on an offcut or on a bag you're not attached to. Work somewhere well ventilated, as most alcohol or solvent based dyes have a strong smell.
- Empty and mask. Take everything out, vacuum the lining and mask off zips, hardware and the edge of the lining with painter's tape.
- Degrease. Wipe the entire surface with a leather preparer or deglazer on a cotton cloth. This is what separates even from patchy: hand cream, skin oil and old conditioner all block dye.
- Test. Try the dye on a hidden spot, such as the base or the inside of a flap. Leave it overnight before judging the colour, because wet leather always looks darker.
- Apply thinly. Use a wool dauber or soft sponge in small circles. Three thin coats beat one wet one, which leaves tide marks where it dries.
- Edges separately. Painted edges take dye differently. Touch them up afterwards with edge paint in the same shade.
- Buff. After a day's drying, buff off the excess pigment with a dry cloth. More colour comes off than you'd expect. That's normal.
- Seal. Lock the colour in with a finish or a wax balm. Skip this and the bag will rub off on your clothes.
Allow a weekend, drying time included. Keep it away from a light coloured coat for the first week.
DIY or a professional?
For a bag you use a lot and love, a leather restorer or a cobbler who works on leather goods is usually the better choice. They have spray equipment, know which dye suits which leather, and can mask seams and lining without it showing. Do ask whether they work with vegetable-tanned leather, as many dye systems are designed for upholstery leather with a dense top coat.
Doing it yourself is fine for an old bag you'd otherwise get rid of, or if you only want to go a shade darker and don't mind a few cloudy patches. A home-dyed bag looks like a home-dyed bag. Some people like it precisely for that.
Check first whether it needs dyeing at all
A lot of bags people want to dye aren't the wrong colour, they're dry. Dry patches look lighter than nourished ones, so a blotchy tan bag often evens out a good deal after a leather conditioner. Try that first, as described in restoring dried-out leather. Conditioner can be undone. Dye can't.
Every Beocca bag is made from vegetable-tanned full-grain leather, so everything above about absorbent leather applies to each model. Tan darkens by itself over the years: the Ivy shoulder bag in cognac looks different after a few years of wear than on the day it arrives. If you'd rather avoid that, black is the colour that changes least. The colour guide for leather bags explains which shades age well and which mainly look good in the shop.
