Why designers and developers need this
Color is represented differently depending on the tool and context: designers often think in HEX (`#3498db`) or RGB, print work uses CMYK, and CSS supports named colors and HSL for more intuitive adjustments (like "same color, slightly darker"). Constantly converting between formats by hand is slow and error-prone — this tool does it instantly and accurately.
The formats explained briefly
HEX — the standard web format (`#RRGGBB`), most common in CSS and design tools.
RGB — red, green, blue values from 0–255 each; useful when working with code that expects numeric channels.
HSL — hue, saturation, lightness; the most intuitive format for manually tweaking a color (e.g., "make it 10% darker" is a lightness change).
HSV — similar to HSL but models how color pickers in tools like Photoshop typically work.
CMYK — cyan, magenta, yellow, black; used for print design, since printers mix ink rather than emit light.
CSS named colors — the ~140 keyword names (`tomato`, `steelblue`) supported directly in CSS.
The bulk stylesheet converter
For developers migrating an old stylesheet (say, converting all HEX values to HSL for easier theme adjustments), the bulk converter scans a full CSS file and converts every color value in one pass, saving what would otherwise be a tedious find-and-replace exercise.
FAQ
Why does my CMYK conversion look slightly different in print?
CMYK conversion from RGB/HEX is an approximation — actual printed color also depends on the printer, ink, and paper. For color-critical print work, always request a physical proof.
Does it support alpha/transparency values?
Yes, where the target format supports it (e.g., RGBA, HSLA) — transparency is preserved through the conversion.