Color conversion

RGB to Hex color conversion

RGB to Hex color conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Runs locally in your browser.

Instant result

Result

—

Enter values to convert.

Inputs —

Mode —

Formula —

Formulas

Core equations used by this converter.

Hex channelsRR = R.toString(16).padStart(2,'0') (same for G, B)

Combined#RRGGBB

isRGB-style 8-bit channels (0–255) unless noted. Calculation runs locally in your browser.

How to use

Choose RGB → HEX or HEX → RGB

Use the tabs in the converter to switch direction.

Enter RGB or hex values

Fill in the active fields for the selected direction.

Convert and read the result

Use Convert or let the result update automatically.

Example conversions

Common values with formula and result.

rgb(255, 0, 0) → HEX

R = 255₁₀ = FF₁₆

#FF0000

rgb(255, 215, 0) → HEX (gold)

R = 255₁₀ = FF₁₆

#FFD700

rgb(0, 128, 128) → HEX (teal)

R = 0₁₀ = 00₁₆

#008080

RGB to Hex color conversion specification

Version 1.1.0 · Engine tested

Calculation status

Engine tested 3 published cases
Named expert review Not performed
Calculation version 1.1.0

Review policy

Definition: **RGB** — red, green, blue channels as integers **0–255** (8 bits each → 16,777,216 colors). **HEX** — the same three channels written as six hexadecimal digits `#RRGGBB`.
What it calculates: Convert RGB (0–255) to HEX #RRGGBB. Decimal-to-hex per channel, worked examples, color chart, and FAQ.
Inputs: Values required by the selected conversion mode
Outputs: Converted result in the target unit or format
Formula: RR = R.toString(16).padStart(2,'0') (same for G, B) · #RRGGBB
RGB to Hex color table: Color name RGB (R, G, B) Hex
Black (0, 0, 0) #000000
White (255, 255, 255) #FFFFFF
Red (255, 0, 0) #FF0000
Lime (0, 255, 0) #00FF00
Blue (0, 0, 255) #0000FF
Yellow (255, 255, 0) #FFFF00
Cyan (0, 255, 255) #00FFFF
Magenta (255, 0, 255) #FF00FF
Silver (192, 192, 192) #C0C0C0
Gray (128, 128, 128) #808080
Maroon (128, 0, 0) #800000
Olive (128, 128, 0) #808000
Assumptions: Conversion runs locally in the browser; values are not uploaded.
Uses the formulas documented on this page.
Units: Hex channels
Combined
Boundary conditions: Empty or invalid input yields no valid result.
Out-of-range values may be rejected by the tool runtime.
Example: rgb(255, 0, 0) → HEX → #FF0000
Validation cases: rgb(255, 0, 0) → HEX → #FF0000
rgb(255, 215, 0) → HEX (gold) → #FFD700
rgb(0, 128, 128) → HEX (teal) → #008080
Sources: CalculatorX converter runtime
Standard unit / encoding definitions where applicable
Calculation version: 1.1.0

Color name	RGB (R, G, B)	Hex
Black	(0, 0, 0)	#000000
White	(255, 255, 255)	#FFFFFF
Red	(255, 0, 0)	#FF0000
Lime	(0, 255, 0)	#00FF00
Blue	(0, 0, 255)	#0000FF
Yellow	(255, 255, 0)	#FFFF00
Cyan	(0, 255, 255)	#00FFFF
Magenta	(255, 0, 255)	#FF00FF
Silver	(192, 192, 192)	#C0C0C0
Gray	(128, 128, 128)	#808080
Maroon	(128, 0, 0)	#800000
Olive	(128, 128, 0)	#808000

Background

Interpretation and common distinctions.

Use the converter tabs to switch direction when available. Results for RGB to Hex color conversion update locally in your browser.

Frequently asked questions

Key distinctions behind the conversion.

How do you convert using RGB to Hex color conversion?

Use RR = R.toString(16).padStart(2,'0') (same for G, B). Example: rgb(255, 0, 0) → HEX → #FF0000.

Can I switch direction?

Open the related reverse converter listed under Related tools.

Does this run online or locally?

Calculation runs locally in your browser. Values are not uploaded.

How precise are the results?

Results follow the formulas on this page. Round to the precision your use case needs.