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!)
Will the color look harsh on me? If you choose a hair color that is natural looking, it will not look harsh on you. For example: If you are young, and want to enhance your own hair color. Your stylist will choose a color very similar to what you already have. Younger people can get away with more drastic changes in their hair color because they generally have vibrant skin tones. Although, if a young person chooses a black color for instance, and their hair color is not naturally black, this can sometimes be very harsh looking on them also. Like wise, when young people with very dark hair, try to go all over blonde, it can be a too harsh for the same reasons.
If you are grappling with the problem of choosing a woodwork colour to go with neutral walls, check out Architectural Colours by David Oliver, the founder of Paint & Paper Library. He arranged his off-whites for ceilings, cornices, walls and woodwork in chromatical groups and the concept has been so well received that chromatically arranged colours, such as soft greys, greens and pinks, have been introduced.
THE NARRATIVE. First look for the narrative, simply describe what you see. Who or what is depicted, what's going on? If you see people and things, the painting is figurative; if you see lines and splashes - go for non-figurative. The name of the painting might come in handy, especially when it comes to Dali. What seems to be more important for the artist - representation or expression? Compare the paintings in the styles of hyperrealism and expressionism - you can always tell if the images look idealized or expressly distorted. Notice the feelings you get looking at the painting, the general impression produced by the entire painting and its elements - later you will dig deeper to understand what inspired those emotions. There is a reason why you like one painting more than the other. Your taste in art is as unique as your taste in food or clothes, inspired by your background, upbringing and even professional expertise.
Practically every manufacturer has a "color system," a fat book of color chips with instructions for duplicating each chip. This is accomplished by intermixing cans of colored paint, by adding a concentrated color to a can of white or colored paint, or by adding concentrated color or colors to a can of neutral "base" paint. And for those who don't want any guesswork there's the Color Carousel that mixes the paints right in the store. Whatever the method, the result is a range of colors such as no amateur painter has seen.
So lets start with Warm and Cool. When thinking about Warm, think about a desert panorama of gold, brown and earth tones. When thinking about Cool think of colors in the artic such as gray, black, white or think of the deep blue sea such as deep blues, blue greens and turquoise. Everyone can wear just about any color, the difference is in the shade of the color. When thinking of clothing, makeup or accessories, visualize Cool as a color with a drop of silvery-blue. Visualize Warm as a color with a drop of gold. For example, if you put a drop of gold to a red sweater it becomes a Warm red, but if you put a drop of silvery blue it becomes a Cool red.
Painting ceiling does not require premium paint. You can use flat $15 to $20 ceiling paint. I use Sherwin Williams PRO-MAR 200. Painting ceiling requires a lot of physical work and plenty of drop cloths. If you are not up for the challenge or have very high ceilings contacted a professional will prove to be a smart move.