Color ramp

The Color ramp panel is an interactive selection tool that sets the currently selected HSV or RGB parameter values based on the location of a mouse click. To select the color-model parameters that the color ramp will display, click on one of the radio selection buttons next to the H, S, V, R, G, or B values in the right half of the color picker. The selected parameter can be individually modified using the thin vertical slider control on the right-hand side of the Color ramp panel. The other two color model parameters can be set simultaneously by clicking on the large color display on the left-hand side of the color ramp panel. In the following screenshot, the V (Value) value in the HSV color model is selected and is represented in the thin vertical slider control; the H (Hue) and S (Saturation) values are combined and are represented in the large color display: