Are the CMYK conversion results accurate for printing?

The CMYK values calculated in the browser are approximate theoretical values. Actual printed colors may vary depending on your printer's ICC profile and ink characteristics. For accurate CMYK data for printing, please convert and verify using color management software like Adobe Illustrator or Photoshop.

Does the tool support alpha (transparency) conversion?

Yes, it does. By adjusting the "Alpha" slider in the color picker or directly entering the alpha value in the code, HEX (#RRGGBBAA), RGBA, and HSLA codes will be correctly output. This is ideal for modern Web UI implementations that require transparency.

What is the "Copy CSS Vars" feature?

This feature outputs the selected color as CSS custom properties (CSS Variables). It generates formats like --color-primary: #3b82f6;, along with comma-separated values for RGB and HSL, making it extremely easy to set up Tailwind CSS configurations or dynamic themes.

Is my entered color data saved on a server?

No. This tool operates entirely on the client-side (within your browser). None of your color codes or generated palettes are transmitted or saved to external servers. The "Favorites" feature also saves colors strictly in your browser's local storage, ensuring your privacy.

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color converter,

Color Converter & Palette

Instantly convert HEX, RGB, HSL, HSV, CMYK.
Includes palette generator and contrast check.

⚡

Real-time Conversion

Supports 5 formats

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Color Palettes

Auto-generate complementary

♿

WCAG Compliant

Check contrast ratio

Color Picker

Hue 217°

Saturation 90%

Lightness 60%

Alpha (Opacity) 1.00

Color Codes

HEX

RGB

HSL

HSV

CMYK

/* CSS Variables */
--color-primary: #3b82f6;
--color-primary-rgb: 59, 130, 246;
--color-primary-hsl: 217, 90%, 60%;

Color Palette

Contrast Ratio

White Text Aa

Ratio: -

AA AAA

Black Text Aa

Ratio: -

AA AAA

Detailed Check →

Saved Colors

Save colors using ⭐ (Max 20)

Contrast Checker (WCAG)

☁️

Box-Shadow Generator

✨

Modern UI Generator

about,

About Converter

The Color Code Converter & Palette Generator is a free online tool that instantly converts between five major color formats: HEX, RGB, HSL, HSV, and CMYK. It features an intuitive color picker and automatically generates color palettes such as complementary and analogous colors based on your selection.

It also includes a built-in WCAG contrast ratio checker, an essential standard for web accessibility, allowing you to instantly determine whether white or black text is suitable for your chosen background color. Generated codes can be copied with a single click and can also be exported as CSS variables, significantly improving development efficiency for web designers and front-end engineers.

how to,

How to use

STEP 1

Select or Enter Color

Click the gradient area of the color picker to select a color, or adjust the Hue and Alpha sliders. Alternatively, you can directly enter a color code into the HEX or RGB fields.

STEP 2

Copy Conversion Codes

When you change the color using any method, all color formats (HEX, RGB, HSL, HSV, CMYK) are updated in real-time. Click the "Copy" button next to each item to save it to your clipboard. You can also copy CSS variables all at once.

STEP 3

Check Palette & Contrast

Switch the "Color Palette" tab at the bottom to see color variations like complementary and monochromatic. In the "Contrast Ratio" section, the readability of white/black text on the selected background color is automatically determined.

glossary,

Color Glossary

HEX (Hexadecimal Color Code): The most commonly used color specification format in web design. It is expressed in 6 digits like "#RRGGBB" (or 3 digits "#RGB"), specifying the intensity of Red (R), Green (G), and Blue (B) in hexadecimal (00-FF). When including transparency, it is written in 8 digits like "#RRGGBBAA", and is widely supported in CSS and HTML.
RGB / RGBA: An additive color model based on the primary colors of light (Red, Green, Blue). Based on the color generation principle of displays, each color is represented by a value from 0 to 255. In CSS, it is written like "rgb(255, 0, 0)", and with "rgba", an alpha value (transparency) of 0.0 to 1.0 can be added at the end.
HSL: A model representing color with three attributes: Hue, Saturation, and Lightness. Since it is easy to adjust intuitively such as "changing the color tone" or "making it darker", it is highly suitable for building design systems using CSS (hsl function) and dynamic theme changes.
CMYK: A subtractive color model using four colors: Cyan, Magenta, Yellow, and Key (Black). It is an ink format primarily used in the printing industry, and CMYK values on a browser are approximate theoretical values, so adjustments via profiles are necessary for actual printing.
Contrast Ratio (WCAG): The ratio of relative luminance between a background color and text color, defined by the Web Accessibility Guidelines. To ensure all users can read text, a ratio of "4.5:1 (AA level)" or higher is recommended for normal text, and "3:1" or higher for large text.

faq,

Frequently Asked Questions

Q.Are the CMYK conversion results accurate for printing?: The CMYK values calculated in the browser are approximate theoretical values. Actual printed colors may vary depending on your printer's ICC profile and ink characteristics. For accurate CMYK data for printing, please convert and verify using color management software like Adobe Illustrator or Photoshop.
Q.Does the tool support alpha (transparency) conversion?: Yes, it does. By adjusting the "Alpha" slider in the color picker or directly entering the alpha value in the code, HEX (#RRGGBBAA), RGBA, and HSLA codes will be correctly output. This is ideal for modern Web UI implementations that require transparency.
Q.What is the "Copy CSS Vars" feature?: This feature outputs the selected color as CSS custom properties (CSS Variables). It generates formats like --color-primary: #3b82f6;, along with comma-separated values for RGB and HSL, making it extremely easy to set up Tailwind CSS configurations or dynamic themes.
Q.Is my entered color data saved on a server?: No. This tool operates entirely on the client-side (within your browser). None of your color codes or generated palettes are transmitted or saved to external servers. The "Favorites" feature also saves colors strictly in your browser's local storage, ensuring your privacy.

use cases,

Use cases

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Web Design & Coding

Batch convert HEX codes specified in design tools like Figma or XD into RGB or HSL formats for development. Streamline modern theme construction using CSS variables.

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Accessibility Improvement

Instantly check if the site's background color and text color combination meets WCAG contrast ratio standards (AA/AAA) while coding, achieving a more legible UI.

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Color Scheme Review

Automatically generate related palettes such as complementary or analogous colors based on corporate brand colors. Useful for considering cohesive presentation and graphic design color schemes.

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Conversion Guide for Print

Convert colors used on the web into CMYK values to use as a reference for approximate values when deploying printed materials such as flyers and business cards.