A method for adjusting the color of an image is provided. The image includes a plurality of pixels. The method includes receiving a natural language command to adjust a selected color of at least a portion of the image; determining a selection value for a pixel of interest by comparing a location of a color of the pixel of interest within a color space to a plurality of planes defining a multi-dimensional boundary of a portion of the color space corresponding to the selected color; and adjusting, based on the natural language command, the selected color of the pixel or the pixels of at least the portion of the image determined to be within the portion of the color space corresponding to the selected color. The selection value is representative of whether the pixel of interest lies within the portion of the color space corresponding to the selected color.