National colours of Canada red "in recognition of Canada's official colours". The proclamation accepts both colours for the maple leaves, stating ""three maple leaves conjoined on one stem proper"", in which "proper" refers to the natural colour of the leaves, which is green in spring and summer, and red in autumn. It was not until 1961, with the creation of The Queen's Personal Canadian Flag, that red and white became entrenched as the national colours. For the Federal Identity Program operated by the Treasury Board Secretariat of the Government of Canada, official and signage colours are specified in technical specification T-145. The red colour
Flag of Poland as the official shades of both colours expressed as coordinates in the CIE xyY (CIE 1931) colour space with the tolerated colour differences (ΔE) specified in the CIE 1976 ("L"*, "u"*, "v"*) colour space (CIELUV). The Constitution contains no mention of a national flag. Instead, the flag is defined by the Coat of Arms Act which specifies two variants of the national flag: the national flag of the Republic of Poland ("flaga państwowa Rzeczypospolitej Polskiej") and the national flag with coat of arms of the Republic of Poland ("flaga państwowa z godłem Rzeczypospolitej Polskiej"). Both flags are defined in Article