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RGB (Red, Green, Blue) and hexadecimal (#RRGGBB) are two ways of expressing digital colours. RGB uses three components 0–255. Hex encodes each component as a two-digit base-16 number. HSL (Hue, Saturation, Lightness) is a more perceptually intuitive model used in design tools. All three representations describe the same colour space.

ステップバイステップガイド

1Hex #RRGGBB: each pair is a two-digit hexadecimal number (00–FF = 0–255)
2Red component: first 2 hex digits | Green: middle 2 | Blue: last 2
3e.g. #FF0000 = rgb(255, 0, 0) = pure red
416,777,216 possible colours (256³) in 24-bit colour
5HSL: Hue 0–360° (colour wheel), Saturation 0–100%, Lightness 0–100%

解いた例

入力

rgb(255, 99, 71)

結果

#FF6347 (Tomato red)

CSS named colour: tomato

入力

#059669

結果

rgb(79, 70, 229) — Indigo

Tailwind CSS indigo-600

入力

rgb(0, 0, 0)

結果

#000000 — Black; hsl(0, 0%, 0%)

よくある質問

What is Rgb Hex?

RGB (Red, Green, Blue) and hexadecimal (#RRGGBB) are two ways of expressing digital colours. RGB uses three components 0–255

How accurate is the Rgb Hex calculator?

The calculator uses the standard published formula for rgb hex. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

What units does the Rgb Hex calculator use?

This calculator works with inches, percentages. You can enter values in the units shown — the calculator handles all conversions internally.

What formula does the Rgb Hex calculator use?

The core formula is: Hex #RRGGBB: each pair is a two-digit hexadecimal number (00–FF = 0–255). Each step in the calculation is shown so you can verify the result manually.

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