CIE xyY
[Luminance](https://texonom.com/luminance-9094590d512f4f1c9b8d689430ca12fd) [Chromaticity](https://texonom.com/chromaticity-be36b15ef9a54283bd51b3772ecc8725) 


## Luminance-chromaticity space which means ‘perceived’
Y means brightness
x and y means hue and saturation

### CIE x-y chromaticity diagram
X + Y + Z = 1 plane
![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F0303232e-b6e7-4cf3-9ef5-98062948f0b9%2FUntitled.png?table=block&id=843342f0-0ec7-41ed-b7fd-883352598482&cache=v2)




> [sRGB](https://en.wikipedia.org/wiki/SRGB)





