Steady As

Section 7 Colour Specification of Lights — International

Collision Regulations

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 co-ordinates, which are as follows:

(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 0.320 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

Colour Specification of Lights — Canadian Modification

(v) Restricted Blue

x 0.136 0.218 0.185 0.102

y 0.040 0.142 0.175 0.105

Canada Collision Regulations last amended on 7 June 2023. Official text: laws-lois.justice.gc.ca.

Reproduced from the Justice Laws Website under the Reproduction of Federal Law Order. This is not the official version of the Collision Regulations: the official version is on laws-lois.justice.gc.ca.