Color Converter keeps HEX, RGB, and HSL in sync: change any one and the others update immediately, so you can move between whichever format a given tool, codebase, or design file expects.
They're three ways of describing the same color. HEX (like #0071e3) is a compact code mostly used in CSS and design tools. RGB spells out red, green, and blue as numbers from 0 to 255. HSL describes a color by hue, saturation, and lightness, which is often more intuitive for adjusting a color by hand, since lightening or desaturating a color is just one number.
Over 140 standard CSS color names (like "cornflower blue" or "tomato"), the same set recognized by browsers when you use a color name directly in CSS.
By keeping the color's hue and saturation fixed and stepping its lightness up (tints) and down (shades) in HSL. The highlighted swatch in the middle is your current color.
No. All conversion happens locally in your browser using plain math. Nothing is sent to a server.