1. Human Eye Perception
The average human eye can distinguish about 1 million different colors.
This includes variations in:
Hue (red, blue, green…)
Saturation (pure to pale)
Brightness (light to dark)
2. In Digital/Computer Systems
RGB (Red, Green, Blue) system:
256 shades for each of the 3 colors.
256 × 256 × 256 = 16,777,216 possible colors.
These are used in digital screens and design software.
3. In Nature
Infinite color variations exist in:
Flowers
Animals
Sky
Water
Minerals, etc.
Nature doesn’t work with exact numbers; it’s limitless in shades.
4. Scientific Color Models
CIE color space (used in color science) defines color more precisely using human vision data—making it possible to map millions to billions of colors.
WHAT IS CIE:
Commission Internationale de l’Eclairage
(French for International Commission on Illumination)It’s a global organization that creates scientific standards for light and color.
What is the CIE Colour Space?
The CIE Colour Space is a color map created in 1931.
It defines all the colors the human eye can see.
It gives a scientific way to measure and describe colors, so they appear the same across:
Screens (phones, monitors),
Print,
LED lights,
Other digital and physical media.
Why is CIE important?
Because everyone sees color slightly differently, and every device shows it differently too.
CIE gives a standard—so one color looks the same everywhere.
In Simple Words:
“CIE is like a scientific map for colors your eyes can see.”
“It helps us reproduce the same color correctly on screen, print, and real life.”
