Why Do We See Things In Color?

Because various substances called pigments absorb certain wavelengths of light and reflect others. What is reflected back to the eye appears as the color of the object. Grass looks green, for example, because the pigments in it absorb all the wavelengths of sunlight except green, which is reflected back to us. When all wavelengths of light are absorbed, an object looks black. This would happen, for instance, if you were to shine only yellow or red light on a blue towel. Since the towers pigment reflects only blue and there is no blue in yellow or red light, the towel would absorb all the yellow or red light and appear black. Rather than a color, therefore, black is the absence of color.

Scientists speak of certain "primary colors." These are ones from which the greatest possible number of combinations can be made. The primary colors in light are red, blue and green. When red and blue light are combined, the result is a bluish-red called magenta. Mixing blue and green light produces a bluish-green called cyan. Red and green light go together to make yellow. All three combined give white light.

You are seeing the color that the object does not absorb. It is
reflecting for that color. For example, a red flower absorbs all color
waves except those at the frequency of red.

The color that all items appear are the colors they reflect back at you. When a piece of clothing is observed and it looks red or green any color. These colors are the colors that are not absorbed but reflected. So if the shirt is yellow then all colors but yellow are absorbed and this yellow color is reflected and observed. Color theory can become very complex and interesting; if you really want to understand light and how it interacts with materials and also how it causes reactivity, there is a book and is in most good libraries.:

Photochemistry authors: Calvert and Pitts.  A classic, and very readable.

Have some fun, there is another on "Molecular Photochemistry" by a scientist his last name is Turro.

Well we see things in colour because our sight through our eyes is upsidedown and your puples (the black bit in your eye) can make it see through. Also when you look at an object, the sun bounces onto the object and then the sun bonces into your eyes. We see colour becase of the sun. And also the raibow helps us see colour.

All the colours in the rainbow
red
orange
yellow   thats all and I hope you have learnt some thing today   bye
green
blue
indigo
Violet