Another one of those posts that may or may not be of interest to the general public. I decided to take on the challenge of taking a very light blonde hair color to a knock-out red. This technique is completely mine, no tutorial from any other color specialist was used (although it was inspired by the teachings of the legendary Beth Minardi)!
I started with a doll head that I had cut into a modified mullet, believe it or not! The cut is from the TIGI Glastonbury Glamour collection. The color technique took about 3 hours to complete (including blow-out, but not cut), and consisted of three glazes of verying intensities of reds. This is a very technical color and should not be attempted by someone without many years of color experience. Once again, I warn any lay-people out there reading: it will cost you more to have this fixed, than to pay a color expert in the first place. I do not recommend attempting this with a supermarket/drug store color! Be warned!
P.S. I’d love to find a live model who would go for this kind of change in photos!
Tutorial at end of post.

Just for a reference point, this is the doll head used for a Fantasy Wedding concept, with origional color. The black bang extension was removable.

This is the final color (none of these photos has been color edited, by the way, the color is actually quite a bit bolder in person).

This shows some of the depth of the color.

The cut is a combo of a disconnected a-line (or graduated) bob, with a somewhat mullet-ish back section.

A nice shot of the face framing layers of the cut. This cut could be done with a much more or less emphasized back section.
Blazing Red Tutorial
I started with a level 9, very light golden blonde. This technique will work equally well on a level 7 or 8 gold, red, or ash tone. I would even be willing to try it on a platinum level blonde (though I would first prep the hair to make sure any toner or gloss was gone).
All color formulas are using L’oreal Richesse no-lift demi-permanent color with Richesse 9 volume developer, mixed 2 parts developer and 1 part color. I use the term part instead of giving ounces because different amounts will be needed depending on length and thickness of hair. For this application I used 40 ounces of color to 80 ounces of developer for all three formulations.
formula 1
3p 7.34
1p .40
Richesse 9 volume developer
Formula 1 was applied scalp to ends and processed 20 minutes with steam heat. I prefer a steamer because I don’t have to use a bag. This makes spot checking and hairline cleanup easier, and the steamer mimics the moist heat of the scalp, which I feel contributes a very even color process.
Shampoo and dry under hood dryer.
formula 2
3p 4.56
1p 3
Richesse 9 volume developer
Formula 2 was applied at scalp and taken randomly through 1/2-1 inch out. When the entire head is applied with this technique I went back and took color through ends at NAPE, and then used a baliage technique over the rest of the head taking very chunky weave sections through ends. This was again processed 20 minutes with a steamer, shampooed and dried.
formula 3
1p 5.6
1p 6.64
Richesse 9 volume developer
Formula 3 was then applied scalp to ends and processed for 20 minutes with the steamer. The hair was then styled using Rusk Smoothing Lotion, flat ironed, and sprayed with Kenra Spray Gloss. The final formula can be altered depending on the depth and intensity of the color desired.
Hope you enjoyed (maybe) learning something today!