Color converter

This free color converter translates hex, rgb, hsl, and cmyk values instantly. Paste a code to see exact equivalents across web formats without signing up.

How the color converter parses formats

You paste a string like #FF5733 or rgb(255, 87, 51). The tool normalizes the input by stripping all whitespace and ignoring letter case before running the math. Then it maps the values to a standard 0 to 255 integer range for red, green, and blue. From that baseline, it calculates the hue, saturation, and lightness for HSL. It also derives the cyan, magenta, yellow, and key percentages for CMYK.

If you need to know how to convert color formats accurately, understanding the baseline RGB integers is key. Hex codes are just base-16 representations of those RGB integers. The math for HSL involves finding the maximum and minimum RGB components to calculate lightness. Then it uses the difference between them for saturation and hue. CMYK is subtractive. You take the RGB values, invert them, and divide by the maximum inverted value. It is straightforward algebra.

• Hex accepts 3, 4, 6, or 8 character strings.
• RGB values must fall between 0 and 255.
• HSL hue is a degree from 0 to 360.
• CMYK outputs percentages from 0 to 100.

Practical uses for an online color converter

Designers often hand off Figma exports with hex codes. Frontend developers need those translated to rgba for CSS variables or hsl for dynamic theme adjustments. You might also need to convert a print CMYK swatch into a screen-readable hex code. This checks how it will look on a monitor before sending files to the printer.

Debugging CSS is another common scenario. You spot a weird tint in your browser dev tools. Copying that computed rgb value into a free color converter lets you tweak the lightness in HSL. Then you paste the new hex back into your stylesheet. It is also handy for accessibility checks. You grab the hex code of your text and background. Then you verify the contrast ratios.

Limits of the color converter tool

This tool handles standard sRGB color space conversions. It does not process wide-gamut color spaces like Display P3 or Rec. 2020. If you work with HDR content or specialized print profiles, the CMYK and RGB outputs will be approximate. The math assumes a standard D65 white point.

You also cannot convert named CSS colors directly. The tool expects numerical values or hex strings. Typing rebeccapurple will fail. You need to look up the hex code for named colors first. Alpha channels in hex codes are parsed. But the CMYK and HSL outputs do not include an alpha equivalent.

How to use the color converter

1. Paste your hex, rgb, hsl, or cmyk value into the input field.
2. Wait for the tool to parse the string and calculate the baseline RGB integers.
3. Read the converted values in the adjacent output boxes.
4. Copy the specific format you need for your stylesheet or design file.
5. Clear the input field to start a new conversion.

Color format reference

Compare the structure and typical ranges of the supported color models.

Frequently asked questions

Is this color converter really free?

Yes. You can convert as many colors as you need without creating an account or hitting a paywall.

Why does my converted color look different on my screen?

Monitors have different color profiles and gamma curves. The math is exact for the sRGB space, but hardware calibration dictates what you actually see.

Can I convert named CSS colors like tomato or dodgerblue?

No. The tool requires numerical inputs or hex strings. You must find the hex equivalent of the named color first.

How accurate is the CMYK conversion?

It uses the standard unprofiled conversion formula. It is fine for rough web previews, but professional printing requires an ICC profile conversion.

Does it support 8-digit hex codes with alpha channels?

Yes. The tool parses the last two characters as the alpha channel, though it only outputs the alpha value in the RGBA format.