Gray Card, 18% Gray Card for Photography, White Balance
Pick a color, any color, and this great program will give you the RGB and Hex values. Wonderful!
Infohound Color Schemer
Please don't let this simple image fool you! you can use this FREE website to explore color palettes by mathematical precision
Peacock Inspired color scheme
Infohound Color Schemer - Make Your Palette AT http://infohound.net/colour/
Love this for color ideas
2016 Paint Color Ideas for your Home - Home Bunch - An Interior Design & Luxury Homes Blog
The Color Schemer - helps you create color schemes and save them. Awesome tool.
Online Color Schemer