It has to do with the amount of dust and water vapor in the atmosphere that the sunlight has to pass through and this light is slowed down to the color red. See the related link for more information.
Sky is blue when in a fair day because the suns rays travel directly to the atmosphere when the sun is at its highest point while in sunset the horizon is color read(orange) because the sunds rays bounces in the atmosphere making the color red.
The sun is "white" as our eye's define that word - but white is a mix of many colors. See a spectrum or a rainbow.
The "color" of the sky is blue because the blue light is scattered (best) by the gases in the atmosphere ... and likewise at sun rise and set, while you're seeing the sun through more atmosphere, the blue is scattered away and you see whats left: Yellowish at noon and red at the horizon.
It is how the sunlight is refracted by the earth's atmosphere, kind of like when light shines through a prism, it creates a rainbow, It's just that this rainbow is much bigger, and it seems like the sky changes color as the sunlight is refracted differently.
refer http://www.phrases.org.uk/meanings/red-sky-at-night.html
The sky is rarely red in the morning, and very little is it at night. The reason though is because of the sun setting and rising.
It is mostly due to the pollutants in the atmosphere, in areas with little pollution the sunset is typically only orange and yellow.
red, orange, yellow, green, blue, indigo, violet
The sky is blue because the atmosphere scatters sunlight. Light with shorter wavelengths (blue, purple, violet) is scattered more in the atmosphere, so the sky appears blue; this is the same reason that sunsets and sunrises appear red and orange: at sunset/sunrise, the sun's light hits the atmosphere at a low angle, increasing the distance that the light must travel through the atmosphere. Thus, more colors are 'scattered out', even the blue-end of the spectrum, leaving red and orange colors.
All you need to remember is this: ROY G BIV. These letters stand for the order of the colors of the rainbow, which are: Red, Orange, Yellow, Green, Blue, Indigo, and Violet.Another way to remember the order of the colors of the rainbow is to recite the phrase Richard Of York Gave Battle In Vain.
Refraction. At sunset/sunrise the sunlight passes through a lot of the atmosphere to get to the observer. All that air acts as a prism, bending the light, and blue light bends easier than red light. This means the blue light is bent more, and away from the observer, leaving only the red light behind.
red orange yellow green blue indigo violetu can remember it byrichard of york gave battle in vain
Sunset
blue : green :: red : orange blue is to green as red is to orange
The ocean is not naturally blue, the water reflects the rays from the sky. The sky is blue because A clear cloudless daytime sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.
Then, orange is PURPLE.(RED+BLUE=PURPLE.)OROrange is a fruit.
Green + Red, Blue, Green + Red, Green + Yellow, Blue, Green + Yellow,Red + Yellow, Orange, Red + Yellow, Green + Yellow, Yellow, Green +Yellow, Green + RedAir Guitar (Guitar is invisible)Blue + Yellow, Green + Yellow, Green + Yellow, Red + Blue, Red + Blue,Red + Yellow, Red + Yellow, Blue + Yellow, Green + Yellow, Green +Yellow, Red + Blue, Red + Blue, Red + Yellow, Red + Yellow, Green +Yellow, Green + Yellow, Red + Yellow, Red + YellowHyperspeedOrange, Blue, Orange, Yellow, Orange, Blue, Orange, YellowPerformance ModeRed + Yellow, Red + Blue, Red + Orange, Red + Blue, Red + Yellow, Green+ Blue, Red + Yellow, Red + BlueEasy Expert (gives you more time to hit notes)Green + Red, Green + Yellow, Yellow + Blue, Red + Blue, Blue + Orange,Yellow + Orange, Red + Yellow, Red + Blue**Precision Mode (gives you less time to hit notes)Green + Red, Green + Red, Green + Red, Red + Yellow, Red + Yellow, Red +Blue, Red + Blue, Yellow + Blue, Yellow + Orange, Yellow + Orange, Green+ Red, Green + Red, Green + Red, Red + Yellow, Red + Yellow, Red + Blue,Red + Blue, Yellow + Blue, Yellow + Orange, Yellow + OrangeLarge GemsGreen, Red, Green, Yellow, Green, Blue, Green, Orage, Green, Blue,Green, Yellow, Green, Red, Green, Green + Red, Red + Yellow, Green +Red, Yellow + Blue, Green + Red, Blue + Orange, Green + Red, Yellow +Blue, Green + Red, Red + Yellow, Green + Red, Green + YellowUnlock All SongsYellow + Orange, Red + Blue, Red + Orange, Green + Blue, Red + Yellow,Yellow + Orange, Red + Yellow, Red + Blue, Green + Yellow, Green +Yellow, Yellow + Blue, Yellow + Blue, Yellow + Orange, Yellow + Orange,Yellow + Blue, Yellow, Red, Red + Yellow, Red, Yellow, OrangeUnlock EverythingGreen + Red + Blue + Orange, Green + Red + Yellow + Blue, Green + Red +Yellow + Orange, Green + Yellow + Blue + Orange, Green + Red + Yellow +Blue, Red + Yellow + Blue + Orange, Green + Red + Yellow + Blue, Green +Yellow + Blue + Orange, Green + Red + Yellow + Blue, Green + Red +Yellow + Orange, Green + Red + Yellow + Orange, Green + Red + Yellow +Blue, Green + Red + Yellow + Orange
Red Orange Yellow*GreenBlue Indigo VioletRed is to Orange: Blue is to Indigo.INDIGO.AnswerRed is to orange as blue is to green. Red plus yellow is orange; blue plus yellow is green.
Red is to orange as blue is to green
Red and orange.
The colors in a sunset typically transition from red and orange to pink, purple, and blue. This order is due to the scattering of sunlight by particles in the atmosphere, which causes shorter-wavelength colors like blue and purple to disperse first, leaving longer-wavelength colors like red and orange to dominate the sky.
The orange-blue-red flag is of Armenia.
Obviously blue blue and more blue
blue violet, blue-green, red-orange, yellow-orange, green-yellow,-blue-green