The purpose of this lab was to calculate rgb values for different color ramps. I was provided the values for the darkest color in the color ramp and was tasked to create a linear and adjusted progression color ramp. When creating my linear color ramp I had to find the average value increase from darkest to lightest with 6 colors in total. When finding the lightest color I changed my color mode form RGB to HSV to keep the hue around the same but change the saturation and value. I then subtracted the values of the darkest and lightest RGB values and got the average by dividing by 5.
For the adjusted progression color ramp I took the average and got ⅓ of it. I then added ⅓ and subtracted ⅓ from the average. In an excel spreadsheet I had 5 rows, the top being the ⅓ higher, middle being the average, and last being ⅓ lower. In between in spots 2 and 4 i got the average of the middle and highest and middle and lowest. I then added these to the rgb values of the darkest color, continuing to add until I got to the lightest color.
For the color brew ramp I went to colorbrew.com and selected of the color ramps provided
While doing the linear color progression the color increases gradually, increasing by the same amount with every color. When calculating the adjusted progression the rbc values increase from light to dark. From the lightest colors there is not a very large difference between the colors. Once we get to the larger colors the color has a greater more visible difference. When using the color brewer I chose a multi hue color ramp. The lightest color in the color ramp is almost white. The colors rgb values very much more sporadically than with the ramp I calculated. The hue changes cause the R values to decrease in the middle, then increase again after that. This color ramp has the most distinct color variation than both that I calculated, which I believe allows the colors to be more easily distinguishable.
