RGB Color Mixer & Hex Converter – AP CSP

Learning Objectives

Additive Color: Digital screens use Red + Green + Blue light. Mixing all 3 at max intensity produces white (opposite of paint mixing).

8-Bit Channels: Each channel uses 8 bits (1 byte) = 2⁸ = 256 levels (0–255). Three channels = 24 bits = 16,777,216 unique colors.

Hexadecimal: Base-16 number system (0-9, A-F). Each hex digit = 4 bits. Two hex digits = 1 byte. #FF = 255 in decimal.

Binary Representation: Computers store each channel as 8 binary digits. 255 = 11111111, 128 = 10000000, 0 = 00000000.

Tags

RGBHexBinaryColorData Representation

#FF0000

11111111 00000000 00000000

RGB Channels (0–255)

Red = 255

0xFF

Green = 0

0x00

Blue = 0

0x00

Quick Presets

CONVERSION TABLE

Decimal:rgb(255, 0, 0)

Hex:#FF0000

Binary (24-bit):

11111111.00000000.00000000

Total bits:24

Possible colors:16,777,216

Why Hex? Hexadecimal is a compact way to represent binary. Each hex digit maps to exactly 4 bits: F = 1111, 0 = 0000. So #FF = 11111111 = 255. It's shorter than binary and more computer-friendly than decimal.