The color Yellow is the brightest color in the Universe.
Yellow is the brightest color in the universe because of green and red cones that combined with the neuronal nirvana resulting from the overlapping sensitivity of those green and red cones.
Yellow is a really bright color and is what the sun also appears to be when you try looking at it.
Yellow is an easily spotted color which makes things such as school buses really easy to see.
If you look at a school bus that is yellow it will look pretty bright and school buses are hard to miss when they are around.
Orange is also another brightest color in the universe which is pretty easy to see and is why safety cones and safety vests are colored orange.
So yellow and orange colors are the easiest to see and the brightest colors.
Well there is also red which is also a bright color and some colors of red are much brighter than other colors.