New Pigment 

New Pigment is a picture viewer for colorblind people. It aids in modifying the colors of images and pictures so that those with specific color-blindness can easily view the images. Don't let colorblindness interfere with your computing experience!
graphics viewer image viewer colorblindness color blind

WhatColor 

WhatColor identifies a color of the pixel on the screen. There are some similar tools to display RGB values to assist making HTML used in authoring WWW pages. WhatColor tells you not only RGB values, but also the name of the color of the point.
colourblind color-blind name of color screen color name rgb