Half-tones, scans, photographs, and transparencies will not normally be reproduced in color unless agreed by the journal editor. In some cases, the journal will publish the articles in color online and in grayscale in print.
While some journals offer a limited number of free color pages within the annual page allowance, we advise that this is reserved for occasions when the color is necessary for scientific and not cosmetic reasons. In other cases, the author may be asked to pay for images to appear in color. However, any use of color or black and white is entirely at the editor’s discretion.
Information on color pages and charges may be found on each journal’s Instructions for Authors