The national flag of Scotland is a white saltire (diagonal cross) on a blue background. The technical description is – azure, a saltire argent. A Flag Code was prepared some years ago by the Heraldry Society of Scotland in conjunction with the Scottish Flag Trust and Saltire Society.

The national flag of Scotland has two colors – white and blue. The hexadecimal codes of the colors are #FFFFFF and #0065BF and the corresponding RGB and CMYK values are in the table. The closest Pantone® codes for the blue can be 300 C or 2144 C.

The Scottish flag has 2 primary colors, which are blue and white. The table below has the common and popular codes of these colors in HEX, RGB and CMYK formats along with Pantone (PMS), RAL and NCS (Natural Color System).

The flag of Scotland (Scottish Gaelic: bratach na h-Alba; Scots: Banner o Scotland, also known as St Andrew's Cross or the Saltire) is the national flag of Scotland, which consists of a white saltire defacing a blue field.

This navy blue colour trend was adopted for the Saltire itself by many flag manufacturers, resulting in a variety of shades of blue being depicted on the flag of Scotland ranging from "sky blue" to "royal blue" to "navy blue". Eventually, this situation resulted in calls to standardise the colour of Scotland's national flag.