Suppose that you see a color made up of 66% red, 34% green, and no blue. Keeping the same color fractions, what are the RGB values corresponding to the maximum intensity of this color? (hint: one of them must be set to 255) 

This image has been Flagged as inappropriate Click to unflag
Image (1 of 1)

Expert Answers

An illustration of the letter 'A' in a speech bubbles


The color ratio given is R : G = 66% : 34% and B=0. This means that


We have to find maximum `R` and `G` values preserving this ratio. The maximum value RGB (8-bit RGB) can hold at each component is `255.` The more the values, the more the intensity. It is obvious that `R` must reach this maximum value, because 66%>34%. So `R` must be set to 255 and `G` picked up to preserve the ratio. Therefore

`G=R*(34%)/(66%)=255*(34)/(66) approx 131.4.`

Because `G` must be an integer number, select `G=131.`  G=132 may be also a candidate.

The answer: for the maximum intensity, RGB must be (255, 131, 0).

Approved by eNotes Editorial Team