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The colour lab

Maximum blue

What is this colour called?

The closest names in the swatch book, nearest first. The number is the distance in CIE Lab space: under 2 is hard to tell apart by eye.

Maximum blue#47ABCC1.4Pacific blue#1CA9C94.7Cerulean (Crayola)#1DACD64.8Blue (Weezer Blue Album cover)#189BCC10.2Weezy Blue#189BCC10.2Blue (Munsell)#0093AF10.4Cyan (process)#00B7EB10.8Sora-iro空色#4D8FAC12.5Carolina blue#56A0D313.1Process Cyan#00B9F213.3Air superiority blue#72A0C113.4Iceberg#71A6D213.7

Harmonies

ComplementaryIts opposite on the wheel
AnalogousIts neighbours
TriadicThree evenly spaced
Split complementaryEither side of its opposite
TintsLighter
ShadesDarker

Contrast with text

White text 2.65:1fails
Black text 7.93:1passes AAA

Ratios follow the WCAG 2 formula. 4.5:1 is the usual minimum for body text.

Through colour-blind eyes

Typical vision
Protanopia
Deuteranopia
Tritanopia
No colour

A simulation. Real colour vision varies from person to person.

The weekly palette

Every Monday: seven colours you may not know, what the world is wearing this week, and one idea about colour.