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Rang

The colour lab

Cerulean (Crayola)

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.

Cerulean (Crayola)#1DACD60.7Cyan (process)#00B7EB6.3Pacific blue#1CA9C96.4Maximum blue#47ABCC6.8Blue (Weezer Blue Album cover)#189BCC8.1Weezy Blue#189BCC8.1Process Cyan#00B9F28.9Blue (Munsell)#0093AF12.4Vivid sky blue#00CCFF12.4United Nations blue#009EDB12.7Carolina blue#56A0D313.2Deep sky blue#00BFFF13.3

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 7.91:1passes 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.