Hash Color Code Guide
Learn everything about hash color codes (hex codes) for web design and development. Our comprehensive guide explains what they are, how to use them, and provides tools to help you find the perfect colors for your projects.
Interactive Hash Color Code Picker
Use our interactive tool to find the perfect hash color code for your web design projects. Simply select a color to get its hash code (hex value) along with RGB and HSL equivalents.
What Are Hash Color Codes?
Hash color codes, commonly known as hex color codes, are a way of specifying colors using hexadecimal values. They're a standard in web design and development, providing a precise method to define colors in HTML and CSS.
Each hash color code begins with a pound or hash symbol (#) followed by six hexadecimal characters (0-9, A-F). These six characters represent the red, green, and blue components of the color:
- First pair (00-FF): Red intensity
- Second pair (00-FF): Green intensity
- Third pair (00-FF): Blue intensity
For example, #FF0000 represents pure red because the red component is at maximum intensity (FF), while green and blue are at minimum (00).
Understanding Hash Color Codes
#FFA52C
Hexadecimal is a base-16 number system that uses the digits 0-9 and the letters A-F:
- 0 is the minimum value (0 in decimal)
- F is the maximum value (15 in decimal)
- FF in hexadecimal equals 255 in decimal
By combining different intensities of red, green, and blue (with each ranging from 00 to FF), you can create over 16 million different colors!
Popular Hash Color Codes
Here are some of the most commonly used hash color codes. Click any color to copy its hash code to your clipboard.
Red
#FF0000
RGB: 255, 0, 0
Blue
#0000FF
RGB: 0, 0, 255
Green
#00FF00
RGB: 0, 255, 0
Yellow
#FFFF00
RGB: 255, 255, 0
Cyan
#00FFFF
RGB: 0, 255, 255
Magenta
#FF00FF
RGB: 255, 0, 255
Black
#000000
RGB: 0, 0, 0
White
#FFFFFF
RGB: 255, 255, 255
Modern Web Design Hash Colors
These hash color codes are popular in modern web design and UI development:
Dodger Blue
#1E90FF
Tomato
#FF6347
Medium Sea Green
#3CB371
Gold
#FFD700
Rebecca Purple
#663399
Coral
#FF7F50
How to Use Hash Color Codes
Using Hash Colors in HTML
<!-- Using inline styles --> <div style="color: #FF5733;"> This text has a coral color </div> <div style="background-color: #3498DB;"> This div has a blue background </div> <!-- With deprecated HTML attributes --> <font color="#2ECC71">Green text</font>
Using Hash Colors in CSS
/* In CSS files */
.header {
background-color: #34495E;
color: #ECF0F1;
}
.button {
background-color: #2ECC71;
border: 2px solid #27AE60;
color: #FFFFFF;
}
/* CSS variables */
:root {
--primary-color: #3498DB;
--accent-color: #E74C3C;
}Hash Color Code Tips & Tricks
- •
Shorthand notation: If each channel has repeated digits (e.g., #FF0000), you can use shorthand notation (#F00).
- •
Alpha transparency: Modern browsers support 8-digit hash colors where the last two digits control opacity (e.g., #FF000080 for semi-transparent red).
- •
Consistency: Use CSS variables to maintain consistent colors throughout your website.
- •
Accessibility: Ensure sufficient contrast between text and background colors for readability.
Hash Color Codes vs Other Formats
While hash color codes are popular in web development, there are other color formats available:
Hash Color Code (HEX)
#3498DBHash codes are compact, universal, and the traditional choice for web development.
RGB
rgb(52, 152, 219)RGB uses decimal values (0-255) and supports alpha transparency with rgba().
HSL
hsl(204, 70%, 53%)HSL is more intuitive for adjusting colors with hue, saturation, and lightness values.
Hash Color Code Tools & Resources
Color Chart
Browse our comprehensive color chart with hundreds of hash color codes for your web design projects.
View Chart →HEX to RGB Converter
Convert hash color codes to RGB values for use in your CSS and design projects.
Convert Colors →Color Names
Discover HTML color names and their corresponding hash color codes for easier reference.
View Color Names →Frequently Asked Questions
What is a hash color code?
A hash color code (or hex color code) is a way of representing colors in web design and development using hexadecimal values. It starts with a hash symbol (#) followed by six hexadecimal digits that represent the red, green, and blue components of the color. For example, #FF0000 represents pure red, with the red component at its maximum value (FF) and green and blue at their minimum values (00).
Where can I use hash color codes?
Hash color codes can be used in HTML and CSS to define colors for various elements of your website. In HTML, you can use them in inline styles (style="color: #FF5733;") or with deprecated attributes like font color. In CSS, they're used with properties like color, background-color, border-color, and more. They're universally supported by all modern browsers and are the standard for web color definition.
How many colors can hash color codes represent?
Standard 6-digit hash color codes can represent 16,777,216 different colors (256³). This is because each of the three color channels (red, green, and blue) can have 256 different values (from 0 to 255 in decimal, or 00 to FF in hexadecimal), and 256 × 256 × 256 = 16,777,216. This is often referred to as "24-bit color" because it takes 24 bits (3 bytes) to represent all these colors.
What's the difference between hash color codes and RGB?
Hash color codes and RGB colors represent the same colors but in different notation formats. Hash codes use hexadecimal notation (base-16) with a # prefix, like #FF5733, while RGB uses decimal values (base-10) in the format rgb(255, 87, 51). Both represent the same red, green, and blue color channels, just in different number systems. The advantage of RGB is that it offers rgba() for transparency, while hash codes are more compact and traditionally more widely used in web development.
Ready to Use Hash Color Codes?
Find the perfect colors for your web projects with our interactive tools
Try Our Color Picker