Color Converter Guide - Convert Between Color Formats

Understanding Color Formats

Different color formats serve different purposes. Understanding when to use each helps you work more effectively with colors in design and development.

Common Color Formats

HEX

#RRGGBB or #RGB (shorthand)

• Example: #FF5733, #F53
• Range: 00-FF per channel
• Use: CSS, design tools
• No alpha support (use 8-digit HEX for alpha)

RGB / RGBA

rgb(R, G, B) or rgba(R, G, B, A)

• Example: rgb(255, 87, 51)
• Range: 0-255 per channel
• Alpha: 0-1 (0 = transparent, 1 = opaque)
• Use: CSS, programming

HSL / HSLA

hsl(H, S%, L%) or hsla(H, S%, L%, A)

• H: Hue (0-360°, color wheel position)
• S: Saturation (0-100%, gray to vivid)
• L: Lightness (0-100%, black to white)
• Use: Creating color schemes, adjusting colors

Color Conversions

HEX to RGB

#FF5733

• FF → 255 (Red)
• 57 → 87 (Green)
• 33 → 51 (Blue) = rgb(255, 87, 51)

RGB to HSL

rgb(255, 87, 51)

1. Normalize to 0-1: (1, 0.34, 0.2)
2. Find min, max: min=0.2, max=1
3. Calculate L: (1 + 0.2) / 2 = 0.6
4. Calculate S: (1 - 0.2) / (1 - |2×0.6 - 1|) = 1
5. Calculate H: Based on which is max = hsl(11, 100%, 60%)

When to Use Each Format

HEX

• CSS stylesheets
• Design tools (Figma, Sketch)
• When you need compact notation
• Brand color specifications

RGB

• Programming and calculations
• When manipulating color values
• CSS with alpha transparency

HSL

• Creating color palettes
• Adjusting brightness/saturation
• Generating color variations
• Accessible color design

Color Theory Basics

Color Wheel

• Primary: Red, Yellow, Blue
• Secondary: Orange, Green, Purple
• Tertiary: Mix of primary + secondary

Color Harmonies

• Complementary: Opposite on wheel (high contrast)
• Analogous: Adjacent colors (harmonious)
• Triadic: Three equidistant colors
• Split-complementary: Base + two adjacent to complement

Accessibility

Contrast Ratios

• Normal text: 4.5:1 minimum
• Large text: 3:1 minimum
• Enhanced: 7:1 for AAA compliance

Color Blindness

• Don’t rely solely on color
• Test with color blindness simulators
• Use patterns/labels in addition to color

Convert Colors Now

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Conclusion

Understanding color formats helps you work more effectively in design and development. Use the right format for each context, and our converter handles the math for you.