Live Register
Byte 0
Binary
00000000
Decimal
0
Hex
0x00
Color Picker
click a value to copy it
#F0A500
Hex
#F0A500
RGB
rgb(240, 165, 0)
CMYK
cmyk(0%, 31%, 100%, 6%)
HSV
hsv(41°, 100%, 94%)
HSL
hsl(41°, 100%, 47%)
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Key Concepts
Place Value
Each bit represents a power of 2 — 128, 64, 32, 16, 8, 4, 2, 1 from left to right. Add up the "on" positions to get the decimal value.
One Byte, 256 Values
8 bits gives you 2⁸ = 256 possible combinations — 0 through 255. That's the range of a single byte.
Hex Shortcuts Binary
Each hex digit maps exactly to 4 bits (a nibble), so a byte is always exactly 2 hex digits — that's why hex shows up everywhere in computing.