The work aims to propose a holographic watermarking algorithm for print-and-scan process in narrow color gamut, so as to enhance the robustness of watermark against print-and-scan attacks. The ICC device profile of printer was generated and used to convert the host image into CMYK color space, in order to obtain the narrow color gamut suitable for the device, and the watermarks in the hologram were embedded into DWT domain of the host images. The experiments showed that, after the print-and-scan process, the watermarks could be smoothly extracted by the proposed algorithm with high fidelity of watermarked images. Besides, compared with the watermark embedded in RGB color space, the proposed algorithm showed advantages in watermark robustness and host image fidelity. Compared with CMYK color space with embedded watermark from default conversion, the proposed algorithm showed clear advantage in host image fidelity with basically same robustness. The proposed narrow gamut algorithm can improve the consistency of color transfer in the print-and-scan process and balance the relation between robustness and fidelity with the advantage of hologram integrity. Therefore, the proposed algorithm is conducive to the application of digital watermarking in the anti-counterfeit printing.