为什么英国国旗的蓝底与苏格兰旗帜的蓝底不是同一种蓝？ 第1页

据我所知，这是同一“种”蓝：

联合王国的旗帜是：

The Union Flag shall be azure, the Crosses saltire of Saint Andrew and Saint Patrick quarterly per saltire, counter-changed, argent and gules, the latter fimbriated of the second, surmounted by the Cross of Saint George of the third fimbriated as the saltire.

苏格兰的旗帜是：

A blue field with a white diagonal cross that extends to the corners of the flag. In Blazon, Azure, a saltire Argent.

Azure

这是一种蓝色，与浅色的天蓝色“sky blue”相对，是一种相对较深的蓝色。它得名于青金石[lapis lazuli (stone of Lazhward)]，从天然染料中获取，历史十分古老，产地多元分布——这意味着不可能做到完全的精确，因此Azure虽然表示“较深”的蓝色，但这种蓝色内部也有很大的区别，没有统一的标准。

However, the termazure does not refer to a particular shade of blue.^[1]

Throughout the history of fabric production natural dyes have been used to apply a form of colour,with dyes from plants, including indigo from woad, having dozens of compounds whose proportions may vary according to soil type and climate;therefore giving rise to variations in shade.
在历史上，天然染料长期被用于为（苏格兰旗）上色，出于土壤类型和气候模式的差异，存在几十种染料的配方，这导致了蓝色深度的变化。
In the case of the Saltire, variations in shades of blue have resulted in the background of the flag ranging from sky blue to navy blue.
具体到苏格兰的旗帜上，蓝色背景的变化从天蓝色到海军蓝（深蓝）不等。
When incorporated as part of the Union Flag during the 17th century, the dark blue applied to Union Flags destined for maritime use was possibly selected on the basis of the durability of darker dyes,with this dark blue shade eventually becoming standard on Union Flags both at sea and on land.
自从17世纪，联合旗（当代联合王国旗帜的前身）出现之后，出于耐久度的考虑——多为航海旗，（苏格兰）国旗的颜色开始向联合旗靠拢，逐步转化为深蓝色，这一（相对于azure更加精确）的标准，最终成为联合旗的标准配色。
Some flag manufacturers selected the same navy blue colour trend of the Union Flag for the Saltire itself, leading to a variety of shades of blue being depicted on the flag of Scotland.
这导致（苏格兰）国旗上出现了两种不同的蓝色。

和

2003年，在长期的要求标准化苏格兰旗的呼声中，苏格兰议会召开会议审核了一项请愿书，并最终将政府使用的苏格兰旗的颜色规定为：Pantone 300 c is #005EB8 as hexadecimal web colours.

是这样一种相对折中的深蓝色。

值得一提的是，联合王国当前使用的国旗，其蓝色的标准是：

显然联合王国使用的旗帜更深一些。

所以，这其实是两种平行发展，同时又互相影响的颜色标准，他们都是Azure，但是略有不同。

这是仅掌握有限的权力的中央政府和自主性较强的地方政府分别自行做出的决定。

参考

1. ^ "Frequently Asked Questions". College of Arms. Archived from the original on 13 April 2009. Retrieved 9 December 2009.