Like this, it will actually take quite a while to reach a number that is close enough to the yellow color you've chosen that you can't tell any difference (and mathematically, you will never actually reach an average of 4!)
The reasoning here is simple. Every color in the visible spectrum can be assigned a number based on a luminosity scale (a scale from light to dark) from 0 to 9 where white is 0 and black is 9. Now suppose that the brown you are trying to cover has a score of 8, and the yellow paint you want to apply has a 4.
Remember this simple rule when thinking about Warm or Cool: Warm individuals have red or gold highlights in their hair. Cool individuals have no red or gold highlights in their hair. That is true for girls and women of all ages. Whether you color your hair, use the color you have now as the basis to determine whether you are Warm or Cool. Congratulations! You are half way towards determining your Season.
A Gloss paint is easy to clean and resists scuffs better. This is ideal for rooms that are constantly used. Most gloss paints are best recommended to use on woodworks, baseboards, kitchen and bathroom walls, doorjambs, and window casings. The downside of using gloss paints, however, is the noticeable imperfections in the wall surface.
Is some color dominating?
Color - The paint makers are out to sell the lady of the house and color is their come-on. They are tempting her with a kaleidoscope's variety; one firm offers more than 6,000 different shades.
Technical advancements are constantly being made to improve the life span, durability, wear and performance of exterior paints. The Akrylatfarg range at Ray Munn, for example, is an environmentally sound water-based option.