RGB Color Reference
Complete web colors chart with hex and RGB values
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Color Reference
| Preview | Color Name | Hex Code | RGB Value | Action |
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When to Use RGB Color Reference
Web Design
Find and use perfect color codes for website designs, themes, and user interfaces
CSS Development
Reference color values when writing CSS stylesheets and designing responsive layouts
App Design
Use standardized color codes for mobile app UI design and branding consistency
Graphic Design
Match colors between web and graphics software using precise RGB and hex values
Brand Guidelines
Document and reference brand colors with accurate RGB and hex codes for consistency
Learning Colors
Study color theory, explore color relationships, and understand RGB color model fundamentals
Frequently Asked Questions
What is RGB color?
RGB stands for Red, Green, Blue - the three primary colors of light used to create all other colors on digital screens. Each color component ranges from 0 to 255, creating over 16 million possible color combinations. For example, RGB(255, 0, 0) is pure red, RGB(0, 255, 0) is pure green, and RGB(255, 255, 255) is white.
What is a hex color code?
A hex color code is a 6-digit hexadecimal representation of an RGB color, preceded by #. The first two digits represent red (00-FF), the middle two represent green, and the last two represent blue. For example, #FF0000 is red (255 red, 0 green, 0 blue). Hex codes are commonly used in HTML, CSS, and web design because they're compact and easy to use.
How do I convert RGB to hex color?
To convert RGB to hex: 1) Convert each RGB value (0-255) to hexadecimal (00-FF), 2) Combine them with # prefix. Example: RGB(255, 165, 0) becomes #FFA500 (FF for 255, A5 for 165, 00 for 0). You can use online converters, calculator functions, or programming: in JavaScript, use rgb.toString(16).padStart(2, '0').
What are web-safe colors?
Web-safe colors are 216 colors that display consistently across all browsers and devices, especially important for older systems. They use RGB values in multiples of 51 (0, 51, 102, 153, 204, 255) or hex values 00, 33, 66, 99, CC, FF. While less critical with modern displays, web-safe colors ensure maximum compatibility and consistent appearance.
How do I use RGB colors in HTML and CSS?
In HTML/CSS, use colors in multiple ways: Hex codes (color: #FF0000;), RGB function (color: rgb(255, 0, 0);), RGBA with transparency (color: rgba(255, 0, 0, 0.5);), or color names (color: red;). Hex codes are most common for their brevity. RGB/RGBA is useful when you need to calculate or adjust colors dynamically.
What is the difference between RGB and RGBA?
RGB defines colors using Red, Green, Blue values (0-255). RGBA adds an Alpha channel for transparency (0.0 to 1.0). RGB(255, 0, 0) is opaque red, while RGBA(255, 0, 0, 0.5) is 50% transparent red. Use RGBA when you need semi-transparent colors for overlays, backgrounds, or layered designs. Not all contexts support transparency.
Is this RGB color reference free?
Yes, our RGB color reference tool is completely free with no registration required. Browse unlimited colors, search by name or code, copy color values, and access the complete reference without any costs or limitations. The tool includes 140+ commonly used web colors.
What are the basic HTML color names?
HTML supports 140 standard color names like red, blue, green, yellow, black, white, gray, orange, purple, pink, brown, cyan, magenta, etc. These names can be used directly in CSS without hex codes or RGB values. For example: color: tomato; or background-color: skyblue;. Named colors are convenient but hex codes offer more precise control.
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