[ 2 syll. nat-su, na-tsu ] The baby girl name Natsu is also used as a boy name. It is pronounced as NAETSuw- â . Natsu has its origins in the Japanese language and it is also used largely in Japanese. The name Natsu means 'summer'.
Yellow is one of three primary colors, which means that it is one color only and cannot be made by mixing other colors. The shade of yellow may be lightened or darkened by adding additional colors, however. White can be added to yellow to make a paler shade, and adding orange or red will create a darker yellow.
Color is the appearance of objects or light sources; caused by the emitance, reflection, or transmittance of light.   Color is measured in wavelengths. A sighted person â¦ can see many colors with light, because they are reflected into a sighted person's eyes. There are hundreds of different colors.DDITIVE colors are like colored lights. SUBTRACTIVE colors are like paint. For additive colors, you can make yellow from adding red and green light. Or yellow, being a spectral color, means that light of a pure certain wavelength, around 570nm, is itself yellow.