Why Can Be Colored

why can be colored

If an object can emit light and objects that emit red light, then the object would look red. Meanwhile, if an object can not emit light, then the object would appear in color according to the color spectrum of the reflected object. Meanwhile, the color spectrum that is not reflected will be absorbed by atoms or molecules making up the object. For example, when illuminated with white light, the leaves will reflect the spectrum of green light-absorbing than the green color spectrum so that the leaves look green.

Then why is an atom or molecule absorbs certain light? Absorption occurs only if the photon energy that comes matched with the necessary energy to move one outermost electron atom or molecule from ground level to excited levels (or from the valence band into the conduction band in solids). So the absorption spectrum of colors by the constituent atoms or molecules of an object that causes the object reflects a specific color only. The spectrum of colors that are not absorbed, it will bounce. And the spectrum of the reflected color is visible to the eye, and make the object to be colored.

The water proved to have a Color

Then why is there a clear object alias is colorless like water. However, it turns out water and other translucent objects actually have color. Keep in mind that water color is blue, because the water absorbs the sun's light wave (which consists of seven elements of color). Water molecules are then absorbed the colors and reflects blue color spectrum, and that is seen by our eyes.

But we can not possibly see the blue water was only on the glass of water or a bucket of water alone. Because the layer of water in the glass does not absorb and reflect quite a spectrum of color came to him, so that water can not show the original blue color. Another case when we look into the swimming pool or even ocean. The water will reflect the blue color spectrum and absorbs other colors of the spectrum so that the water appears blue.

With this it is clear why the sea water or water in a swimming pool blue. However, in addition to the reflected blue water itself, the oceans also contain a lot of other particles. Starting from the fish, corals, plankton, and so on. There are also organic substances are dissolved in water. These materials is the one who causes the absorption of sunlight, so leaving only a dark blue for the ocean. In addition, the reflection of blue sky in the water were also given the role of the blue color of sea water.

The sky appears blue and the sun appears Color Yellow

The color blue itself actually comes from the sunlight that have wavelengths large. When it enters Earth's atmosphere, the wavelength will be smaller and scattered. The new wavelength is equal to the wavelength of blue so the sky looks blue. Actually, this event is similar to the entry of light through a prism. The incoming light will bounce into several main colors: purple, indigo, blue, green, yellow, orange and red. The color purple has the highest long-wave, and the red color of the smallest, so the term ultra-violet and infra-red.

Sunlight itself is actually white. White light itself is a combination of various wave energy. Then why the sun looks yellow in our eyes? This is caused by reflected blue waves in the atmosphere as described above so that the combined wave of color are left visible in yellow.

The division of Color

Colors

Primary Colors

Is a base color that is not a mixture of other colors. The colors included in the primary colors are red, blue, and yellow.

Secondary Colors

Is the result of mixing primary colors with the proportion of 1:1. For example orange is a mixture of red with yellow, green is a mixture of blue and yellow, and purple is a mixture of red and blue.

Tertiary colors

Is a mixture of one primary color with one secondary color. For example a yellowish orange color obtained from the mixing of yellow and orange.

Neutral colors

Neutral color is the result of the three primary colors mixed in the proportion 1:1:1. These colors often appear as a counterweight contrasting colors in nature. Usually the result of proper mix will go black.