Seaman's Handbook

ANNEX I. Positioning and technical details of lights and shapes

The chromaticity of all navigation lights shall conform to the following standards, which lie within the boundaries of the area of the diagram specified for each colour by the International Commission on Illumination (CIE).The boundaries of the area for each colour are given by indicating the corner coordinates, which are as follow: (i) White x 0.525 0.525 0/.452 0.310 0.310 0.443 y 0.382 0.440 0.440 0.348 0.283 0.382 (ii) Green x 0.028 0.009 0.300 0.203 y 0.385 0.723 0.511 0.356 (iii) Red x 0.680 0.660 0.735 0.721 y 0320 0.320 0.265 0.259 (iv) Yellow x 0.612 0.618 0.575 0.575 y 0.382 0.382 0.425 0.406