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Free color converter for developers and designers. Convert HEX to RGB, RGBA, and HSL instantly with a live preview and CSS-ready output from our programming and frontend tools.
Last updated: April 14, 2026
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Preview
#3B82F6
RGB
rgb(59, 130, 246)
RGBA
rgba(59, 130, 246, 1.00)
HSL
hsl(217, 91.2%, 59.8%)
Core output
rgb(r, g, b)
Instant conversion for 3-digit and 6-digit HEX values.
Alpha support
rgba(..., a)
Useful for overlays, shadows, and transparent UI layers.
Design-friendly
hsl(h, s, l)
Makes hue/saturation/lightness adjustments easier.
Visual check
Preview block
Quickly verify selected colors against design intent.
Accessibility aid
Text contrast hint
Suggests dark or light text for better readability.
Developer workflow
Production ready
Works for CSS variables, Tailwind configs, and design tokens.
For #3B82F6:
RGB
rgb(59, 130, 246)
HSL
hsl(217, 91.2%, 59.8%)
The calculator normalizes HEX input (including 3-digit shorthand), converts channels from hexadecimal to decimal, then computes RGB, RGBA, and HSL formats. It also evaluates relative luminance for practical text contrast guidance.
#RRGGBB → (RR, GG, BB) hex pairshex pairs → decimal (0-255) RGB channelsRGB + alpha → RGBARGB → HSL + luminanceThese conversions are standard for web rendering and frontend styling workflows.
From HEX input to RGB/RGBA/HSL design and code outputs
Web color conversion relies on base-16 to base-10 translation and color space formulas widely used across CSS, graphics software, and design systems. This tool provides fast format interoperability for frontend engineering.
Result: Quick conversion keeps design and development color formats aligned.
Useful for design tokens, themes, and component libraries.
Share it with frontend and product design teammates