Understanding Color Formats: HEX, RGB, HSL and Beyond
What this converter does
A single color can be written many ways, and this tool translates one color across six of them at once. Type a value as HEX, RGB, or HSL — or pick one with the visual color picker — and it instantly shows the equivalent HEX, RGB, HSL, HSV, CMYK, and LAB notation. The HSL sliders let you nudge hue, saturation, and lightness while every other format updates to match.
Because all six formats are derived from the same color rather than a fixed table, adjusting the picker or a slider recalculates the whole set in real time, so what you copy always reflects the exact swatch on screen.
When to reach for each format
Different jobs call for different notations. HEX and RGB are what you paste into CSS and most design tools; HSL is easier to reason about when you want a slightly darker or less saturated version of a color; CMYK matters once a design is headed for print; and LAB is useful when you need colors that look evenly spaced to the human eye. Having all six side by side means you can grab whichever one the task in front of you expects, without hunting for a second converter. Those values rarely stay on their own: an rgba() string is exactly what the CSS shadow generator needs for a soft drop shadow, and a single HEX code is what the theme-color tag from the meta tag generator uses to tint a browser's address bar.
Example: converting #FF5733
Take the orange #FF5733. As RGB that is rgb(255, 87, 51) — full red, a little green, less blue. As HSL it becomes roughly hsl(11, 100%, 60%): a hue near the red end of the wheel, fully saturated, at 60% lightness. Sent to print it maps to about cmyk(0%, 66%, 80%, 0%). Each notation points at the same swatch; they simply describe it with different numbers, and a copy button next to each one drops the value straight into your code or design file.
Format notes and edge cases
HEX and RGB carry identical information — #FF5733 and rgb(255, 87, 51) are the same color in different clothing — so converting between them never loses anything. HSL and HSV instead reorganise that information around human intuition, which makes them handier for tweaking a color than for storing it. CMYK is a print model with a narrower gamut than your screen, so its values are a close approximation rather than a perfect match, while LAB is device-independent and perceptually uniform. The HEX, RGB, and HSL results here can all be pasted straight into CSS.