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Sélecteur de couleur & convertisseur — Outil en ligne gratuit

Choisis des couleurs et convertis HEX ↔ RGB ↔ HSL

Sélecteur de couleur gratuit avec conversion HEX, RGB, HSL, HSV. Pipette visuelle et tous les formats pour designers et développeurs.

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Free color picker & converter — HEX, RGB, HSL, HSV, CMYK

Outilolis Color Picker lets you select any color and see it in 5 formats instantly: HEX, RGB, HSL, HSV, and CMYK. Plus WCAG contrast info. Perfect for web developers, designers, and anyone picking brand colors.

How to use this tool

  1. 1

    Pick a color visually

    Use the color picker to click any color.

  2. 2

    Edit any format directly

    Type in HEX, RGB, or HSL — the others update instantly.

  3. 3

    Copy the value you need

    Click any format's copy button to grab just that representation.

When to use which format

  • HEX — web/CSS, concise (6 chars). Good for copy-paste.
  • RGB / RGBA — web, supports alpha transparency
  • HSL / HSLA — easier to tweak — change hue without shifting brightness
  • HSV — common in design tools (Figma, Photoshop)
  • CMYK — printing — physical ink mixing

Frequently Asked Questions

HEX vs RGB vs HSL?
HEX: #FF5733 — web-friendly, 6 digits. RGB: rgb(255, 87, 51) — numeric Red/Green/Blue 0-255. HSL: hsl(11, 100%, 60%) — Hue/Saturation/Lightness — easier for designers to tweak.
Why use HSL?
Easier to intuitively adjust colors. Change hue without affecting saturation or lightness, or darken without shifting color. Widely used in modern CSS frameworks like Tailwind.
What's the difference between RGB and RGBA?
RGBA adds an alpha channel (transparency). rgba(255, 0, 0, 0.5) is half-transparent red. HEX equivalent: #FF000080 (8-char HEX with alpha).
Why does my monitor show the color differently?
Monitors have different color gamuts and calibration. For exact color matching, use a calibrated monitor and the sRGB color space. For web use, default sRGB is fine.
Is my selected color private?
100%. Everything runs in your browser.

À retenir

  • Color Picker & Converter is a free, browser-based developer tool — pick colors and convert hex ↔ rgb ↔ hsl.
  • Non signup, no downloads, no file uploads — your data stays on your device.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use Color Picker & Converter

  1. Open the tool: Launch Color Picker & Converter on Outilolis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

Color Picker & Converter — Quick Facts

Prix
Gratuit — sans limites, sans filigrane, sans paywall
Confidentialité
100% dans le navigateur — aucune donnée n’est envoyée à un serveur
Plateforme
Tout navigateur moderne — desktop, tablette ou mobile
Catégorie
Développeur Outils on Outilolis
Hors ligne
Works offline after first visit (Progressive Web App)
CaractéristiqueDétails
OutilColor Picker & Converter
CatégorieDéveloppeur
Inscription requiseNon
Téléversement de fichierAucun — traité dans le navigateur
Compatible mobileEntièrement adaptatif
CoûtGratuit pour toujours

Why Use Color Picker & Converter?

You should try Color Picker & Converter for a quick, private way to pick colors and convert hex ↔ rgb ↔ hsl. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Confidentialité. Cet outil fonctionne entièrement dans votre navigateur. Vos données ne sont jamais envoyées à un serveur.