The RGB Color Model
RGB (Red, Green, Blue) is an additive color model where red, green, and blue light are added together in various ways to reproduce a broad array of colors. It's the standard for digital displays like monitors and screens.
Hexadecimal Color Codes
HEX codes are a way of representing RGB colors in a six-digit, hexadecimal format. It's the most common way to specify colors in web design (HTML and CSS).
HSL and HSV for Intuitive Control
HSL (Hue, Saturation, Lightness) and HSV (Hue, Saturation, Value) are cylindrical-coordinate representations of points in an RGB color model. They are often preferred by designers for their intuitive nature.
CMYK for Print Media
CMYK (Cyan, Magenta, Yellow, Key/Black) is a subtractive color model used in color printing. It works by masking colors on a lighter, usually white, background.