The Saltire Blue: Pantone 300

The fix is finally in: the official colour endorsed by the Scottish Parliament is Pantone 300, a suitably fetching shade of sky-blue, as we British like to call it, azure.

BBC News: Flag colour is azure thing.

Scottish Parliament: Public Petitions Committee - Petition PE512.

Approximations to Pantone 300 may be:

RGB 0 144 254

CMYK 100 30 0 0

Hexa-decimal #0090fe (background-color for this div)

The web already knows about "skyblue"

This div is in the HTML Colour Name "skyblue"

RGB 135 206 235

Hexa-decimal #87CEEB

Nearest web-safe colour #99CCFF

And has its own version of "azure"

This div is in the HTML Colour Name "azure"

RGB 240 255 212

Hexa-decimal #F0FFFF

Nearest web-safe colour #FFFFFF

For sure, the Saltire blue is a much lighter colour than commonly seen with most flags or most representations of flags, except for some of the well-faded versions flying around and about in Edinburgh.

Disclaimer: colour conversions are a black art - your mileage may vary!