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This week we talk about colour. 

Colour is generally a central element of branding, but we must also think about accessibility and the emotional response colour generates.  Red is frequently associated with stop or bad, whereas green with good or go.  Similarly, we may say we feel blue when we're a bit down.  At the same time, we need ensure our choice of colours are accessible to people with colour blindness, and not relying entirely on colour to tell your data story.

If you want to select an exact colour from an image, and get the RGB code, you can use a colour picker, such as this one.  You can use a theme generator to create a selection of complementary colours, and put these colours into a theme file.  If you don't want to create the JSON file from scratch (and let's face it, who does?),  you can use this handy tool from PowerBI.tips. 

Coloring for Colorblindness gives a reasonably simple  introduction to creating accessible colour schemes.

Finally, make sure the colour is included in the non-function testing - including testing the colours on different screens.  If you're not yet doing non-functional tests, you should be.

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