Some people see pink, others see salmon – tomato, tomato? Or worlds away from each other? A slight shift in color such as this can move a whole different crowd. Color is extremely important, and color has the power to move people, and to move on it’s own, aside from composition and brightness or contrast.
There’s an awesome optical illusion by the Travelin’ Librarian that uses the power of color to blow your mind – I took their creepy-crawly optical illusion, pictured below, and pulled the color out of it in a few examples. Look how much slower the 1/2 saturation image seems to move, and how very-still the black and white version seems.
Color power, ya’ll.