A document edit device includes: a memory configured to store a plurality of data sets, each of which includes identifiers of at least two colors; a color information obtaining unit configured to obtain color information indicating at least one reference color as a color of an element among elements included in a document as an edit target; an extraction unit configured to extract a data set including an identifier of an approximate color, from among the data sets stored in the memory, the approximate color being a color having the shortest color distance to the at least one reference color indicated by the color information obtained by the color information obtaining unit; and a first color determination unit configured to determine a color of an other element included in the document, based on at least one of a color difference vector between two colors included in the data set extracted by the extraction unit and a color difference vector between the approximate color and the reference color.