Test a scrap piece before blending stain on the actual project.
Blending one color of wood stain into another allows you to create complex hues and color variations, for fantasy effects or to mimic the hues in a specific species of wood. While the stain-blending process is not difficult, working with the same type and brand of stain for each color ensures satisfactory results.
Blending wood stain may be done in one of two ways, depending on the colors used. In either case, test the blending process on a scrap board to ensure you are happy with the results before applying it to your project piece. Wipe the first color stain, such as the lighter shade, onto one part of the project using a clean rag. While it is still wet, rub the second stain color onto the appropriate area, wiping back over the area where the two stains meet to blend the colors.
Mix the two stains together in a small container using an eyedropper to achieve the desired proportions, testing a scrap to guarantee satisfaction. Wipe one of the two original colors over the designated area of the project, stopping before you reach the area where the colors will blend. Wipe the second stain color over its own area, again leaving the central blending area untouched. Wipe on the blended custom shade in the area in between, going over the lines of each original color slightly to blend.
Adams, Kathy. "How to Blend One Color of Wood Stain Into Another." Home Guides | SF Gate, http://homeguides.sfgate.com/blend-one-color-wood-stain-another-102908.html. Accessed 24 April 2019.