Unlimited Colors Converter 2025

Free online color converter with unlimited capabilities. Convert between HEX, RGB, HSL, CMYK, Pantone, and more color formats. Generate Pantone color pools, create color schemes, check accessibility compliance, and export color values for your web and design projects.

Color Picker
Recent Colors
Color Information
#3B82F6
HEX
#3B82F6
RGB
rgb(59, 130, 246)
HSL
hsl(217, 91%, 60%)
CMYK
cmyk(76%, 47%, 0%, 4%)
HSV
hsv(217, 76%, 96%)
Name
Blue
CSS Code
/* CSS Color Variables */ :root { --primary-color: #3B82F6; --primary-rgb: 59, 130, 246; --primary-hsl: 217, 91%, 60%; } /* CSS Color Usage */ .element { color: #3B82F6; background-color: rgba(59, 130, 246, 0.1); border-color: hsl(217, 91%, 60%); }
Color Format Converter
Select the format of your input color
Select the desired output format
Input Color
Batch Conversion

Enter multiple colors, one per line, to convert them all at once.

Pantone Color Generator

Generate Pantone color matches from any input color. Adjust the distance threshold to find closer or more varied matches.

#3B82F6
Distance Threshold 15
Lower values find closer matches, higher values provide more options
Max Results 20
Maximum number of Pantone colors to display
Color Scheme Generator
Select the type of color scheme to generate
Choose the format for the generated colors
Shade & Tint Generator
Number of shades and tints to generate
Include the original color in the palette
Contrast Checker

Check the contrast ratio between text and background colors to ensure your design meets WCAG accessibility standards.

#FFFFFF
#3B82F6
Sample Text Preview
This is a smaller text example.
Color Vision Deficiency Simulator

Simulate how colors appear to people with different types of color vision deficiencies.

Original

Example Color Conversions

HEX to RGB/HSL/CMYK:
// Original HEX #3B82F6 // RGB Conversion rgb(59, 130, 246) // HSL Conversion hsl(217, 91%, 60%) // CMYK Conversion cmyk(76%, 47%, 0%, 4%)
CSS Implementation:
/* CSS Variables */ :root { --primary: #3B82F6; --primary-rgb: 59, 130, 246; --primary-light: hsl(217, 91%, 85%); --primary-dark: hsl(217, 91%, 40%); } /* CSS Usage */ .button { background-color: var(--primary); color: white; box-shadow: 0 0 10px rgba(var(--primary-rgb), 0.5); }

Common Uses for Color Conversion

Web Development

Convert between color formats for CSS, create consistent color schemes, and ensure your website meets accessibility standards with proper contrast ratios.

Graphic Design

Find matching Pantone colors for digital designs, convert between RGB and CMYK for digital and print compatibility, and generate coordinated color palettes.

Accessibility Compliance

Check and improve color contrast ratios to meet WCAG standards, simulate how colors appear to users with color vision deficiencies, and create inclusive designs.

App Development

Create consistent color themes across platforms, convert between different color formats for iOS and Android, and ensure proper color representation in various environments.

How to Use the Color Converter

1

Select a Color

Use the intuitive color picker to visually select your desired color, or enter a specific color value in HEX, RGB, HSL, or another format in the input field. You can also use the eyedropper tool to pick colors from anywhere on your screen.

2

View Conversions

Once a color is selected, the tool automatically converts it to all major formats (HEX, RGB, HSL, CMYK, HSV) and displays them alongside the color preview. You can copy any format with a single click.

3

Generate Color Schemes

Navigate to the Color Schemes tab to create harmonious color combinations based on your selected color. Choose from complementary, analogous, triadic, and other schemes, then export the palette for your project.

4

Check Accessibility

Ensure your color combinations meet WCAG accessibility standards by using the Contrast Checker in the Accessibility tab. Enter your text and background colors to see if they provide sufficient contrast for all users.

Frequently Asked Questions about Color Conversion

What's the difference between RGB and CMYK color models?

RGB (Red, Green, Blue) is an additive color model used for digital displays where colors are created by adding light. Starting with black (no light), you add red, green, and blue light in different intensities to create colors, with the combination of all three at maximum intensity producing white.

CMYK (Cyan, Magenta, Yellow, Key/Black) is a subtractive color model used in print. It works by partially or entirely masking colors on a lighter background (usually white paper). The inks reduce the light that would otherwise be reflected, starting with white and becoming darker as more ink is added.

This fundamental difference means some RGB colors cannot be accurately reproduced in CMYK (especially bright, vibrant colors), which is why designs often look different when printed compared to how they appear on screen.

How accurate is Pantone color matching in digital tools?

Digital Pantone color matching provides good approximations but has several limitations:

  • Display variation: Different monitors display colors differently due to calibration, technology, and settings.
  • Gamut limitations: Many Pantone colors (especially metallics and neons) fall outside the reproducible range of RGB screens.
  • Algorithm differences: Different tools use different algorithms to find the "closest" Pantone color.

Our tool uses advanced color distance algorithms that account for human perception to find the closest possible matches. However, for absolute precision in print production, you should always reference physical Pantone color guides.

The distance threshold in our tool can be adjusted to find either very close matches (small threshold) or a wider range of similar colors (larger threshold).

What contrast ratio do I need for WCAG compliance?

The Web Content Accessibility Guidelines (WCAG) define the following contrast requirements:

WCAG Level AA (minimum compliance):

  • Normal text: Contrast ratio of at least 4.5:1
  • Large text (18pt or 14pt bold and larger): Contrast ratio of at least 3:1
  • UI components and graphical objects: Contrast ratio of at least 3:1

WCAG Level AAA (enhanced compliance):

  • Normal text: Contrast ratio of at least 7:1
  • Large text (18pt or 14pt bold and larger): Contrast ratio of at least 4.5:1

Our contrast checker automatically evaluates your color combinations against these standards and provides immediate feedback on compliance. For the best accessibility, aim for AAA compliance whenever possible, but AA compliance is the widely accepted minimum standard.

What are color harmonies and how do I use them?

Color harmonies are structured relationships between colors based on their positions on the color wheel. They create visually pleasing combinations that work well together in designs. Our tool supports these common harmonies:

  • Complementary: Colors directly opposite each other on the color wheel. These create high contrast and vibrant looks but should be used carefully as they can be overwhelming.
  • Analogous: Colors adjacent to each other on the color wheel. These create serene, comfortable designs with low contrast.
  • Triadic: Three colors equally spaced around the color wheel. These offer visual contrast while maintaining harmony and balance.
  • Tetradic (Rectangle): Four colors arranged in two complementary pairs. These offer rich, balanced color schemes with many possibilities.
  • Split Complementary: A base color plus the two colors adjacent to its complement. This provides strong visual contrast with less tension than pure complementary schemes.
  • Monochromatic: Different shades, tints, and tones of a single color. These create a cohesive, unified look.

To use these effectively, typically choose one dominant color and use the others as accents. The 60-30-10 rule is useful: 60% dominant color, 30% secondary color, and 10% accent color.

How do HEX, RGB, HSL, and HSV formats differ?

These formats represent the same colors in different ways that are optimized for different purposes:

  • HEX (#RRGGBB): A hexadecimal representation of RGB values, commonly used in web development. Each pair of characters represents the intensity of red, green, and blue from 00 (none) to FF (full intensity).
  • RGB (Red, Green, Blue): Specifies color by the intensity of red, green, and blue components, typically on a scale of 0-255 or 0%-100%. Used in digital contexts where direct manipulation of color channels is needed.
  • HSL (Hue, Saturation, Lightness): Represents color by its:
    • Hue: Color type (0-360°, where 0° is red, 120° is green, 240° is blue)
    • Saturation: Color intensity (0%-100%, where 0% is grayscale)
    • Lightness: Brightness (0%-100%, where 0% is black, 100% is white)
    HSL is intuitive for human color adjustments as you can easily modify one aspect of a color.
  • HSV/HSB (Hue, Saturation, Value/Brightness): Similar to HSL but with:
    • Hue: Same as HSL (0-360°)
    • Saturation: Similar to HSL (0%-100%)
    • Value: Different from lightness - represents the brightness where 0% is black, but 100% is the full color
    HSV is commonly used in image editing software and color pickers.

For web development, HEX and RGB are the most widely supported. For intuitive color manipulation, HSL and HSV are often preferred as they make it easier to systematically adjust colors.

How can I ensure my colors look consistent across devices?

Perfect cross-device color consistency is challenging due to differences in displays, but these strategies help minimize variations:

  1. Use standard color spaces: Work in sRGB for digital content, as it's the most universal color space across devices.
  2. Avoid extremely saturated colors: Highly saturated colors show the most variation between devices. More moderate colors tend to display more consistently.
  3. Test on multiple devices: Check your designs on different screens (phones, tablets, monitors) to ensure acceptable appearance across devices.
  4. Consider color profiles: For professional work, use color profiles and calibrated monitors. Embed color profiles in your images.
  5. Use relative color relationships: Focus on the relationships between colors rather than exact matches. Even if colors shift slightly, maintaining contrast and harmony is often more important.
  6. Provide sufficient contrast: Colors with good contrast remain distinguishable even with some display variation.

For print-to-digital consistency, consider using colors from limited palettes like Pantone's Color Bridge, which provides matching values optimized for both print and digital media.

Understanding Color Models and Conversions

Color is a complex phenomenon that can be represented in various ways for different purposes. Understanding the fundamentals of color models helps in making effective design decisions and accurate conversions.

Color Models Explained

A color model is a mathematical system for representing colors as tuples of numbers. The most common models include:

  • RGB (Red, Green, Blue): Additive model used for digital displays. Values typically range from 0-255 for each channel.
  • CMYK (Cyan, Magenta, Yellow, Key/Black): Subtractive model used for printing. Values typically range from 0-100% for each channel.
  • HSL (Hue, Saturation, Lightness): Cylindrical-coordinate representation that's more intuitive for human color perception and manipulation.
  • HSV/HSB (Hue, Saturation, Value/Brightness): Similar to HSL but with a different approach to representing brightness.
  • Lab (CIELAB): Device-independent model designed to approximate human vision, where L is lightness and a and b are color-opponent dimensions.

Color Conversion Challenges

Converting between color models can involve several challenges:

  • Gamut limitations: Each model can represent a different range (gamut) of colors. When converting between models with different gamuts, some colors may be approximated.
  • Perceptual non-linearity: Human perception of color is non-linear, meaning equal changes in color values don't always result in equally perceived changes.
  • Device variations: Colors can appear differently across devices due to differences in calibration, technology, and environmental factors.

How Our Color Converter Works

Our tool implements precise algorithms for converting between color formats:

  1. For RGB-to-HSL/HSV conversions, we normalize RGB values and apply standard colorimetric formulas.
  2. For RGB-to-CMYK conversions, we account for black generation and undercolor removal techniques used in professional printing.
  3. For Pantone matching, we use a combination of Lab color space calculations and perceptual distance metrics that better represent human color perception than simple Euclidean distance.
  4. For accessibility calculations, we implement the WCAG contrast algorithm that considers the relative luminance of colors.

Best Practices for Color Usage

  • For web development: Use HEX or RGB, with HSL when you need intuitive color manipulations.
  • For print design: Use CMYK, with Pantone spot colors for precise color matching requirements.
  • For accessibility: Ensure sufficient contrast between text and background colors (minimum 4.5:1 for normal text).
  • For color schemes: Use color harmony principles to create balanced, aesthetically pleasing combinations.
  • For cross-platform consistency: Test on multiple devices and adjust as needed to ensure acceptable appearance.