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Rang

The colour lab

Ai-iro

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.

Ai-iro藍色#2643480.4Noshimehana-iro熨斗目花色#344D565.3Dark slate gray#2F4F4F5.7darkslategray#2F4F4F5.7Kōrainando高麗納戸#2038386.3Charcoal#36454F6.4Omeshionando御召御納戸#3D4C516.6Omeshicha御召茶#354E4B6.8Onando-iro御納戸色#3641416.9Outer space (Crayola)#2D383A7.7Midnight green (eagle green)#0049538.3Tetsuonando鉄御納戸#2B37368.4

Harmonies

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

Contrast with text

White text 10.45:1passes AAA
Black text 2.01:1fails

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.