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Color Palette Randomizer

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Color Palette Randomizer Guidelines

Jump in—creating a professional color scheme is easier than you think.

How to Use the Color Palette Randomizer

  • Select a harmony rule: Choose from complementary, analogous, triadic, etc.
  • Set base values: Pick a base hue or input a HEX color as an anchor.
  • Adjust saturation/lightness: Control the vibrance and depth of generated colors.
  • Refine randomness: Use fine or coarse randomization levels for more control.
  • Preserve colors: Lock selected swatches to avoid changes during regeneration.
  • Ensure accessibility: Check WCAG compliance through automatic contrast analysis.
  • Export your palette: Get formats in HEX, RGB, HSL, or JSON for easy integration.

Color Palette Randomizer Description

About the Color Palette Randomizer

The Color Palette Randomizer is an advanced tool that generates unique, aesthetically harmonious color schemes using mathematical models from color theory. It helps designers, developers, and artists stay inspired and create consistent visual themes.

How It Works

  • Operates in HSL and CIELAB color spaces for perceptual uniformity
  • Uses angular hue transformations based on classical harmony rules
  • Applies randomization algorithms to enhance diversity

Mathematical Principles

Each color is expressed in HSL format:

Hue (H) ∈ [0°, 360°]  
Saturation (S) ∈ [0, 1]  
Lightness (L) ∈ [0, 1]

Harmony rules are calculated as follows:

Complementary: H₂ = (H₁ + 180°) mod 360°  
Analogous: H₂ = (H₁ ± 30°) mod 360°  
Triadic: H₂ = (H₁ + 120°) mod 360°, H₃ = (H₁ - 120°) mod 360°

Accessibility & Compliance

Each generated palette is evaluated for color contrast and visibility under different vision conditions. The contrast ratio is calculated with:

Contrast Ratio = (L₁ + 0.05) / (L₂ + 0.05)  
L = 0.2126×R + 0.7152×G + 0.0722×B

Any pair with a contrast ratio below 4.5:1 is flagged for adjustment.

Use Cases

  • Startup Branding: A wellness company used a split-complementary palette with muted tones for a calm visual identity.
  • Game Design: A puzzle game used a monochromatic palette to distinguish active/inactive UI components without breaking theme.

Get started now and bring your next design to life with a perfect palette.

Example Calculation

Color SchemeHue CalculationExample (Base: 210°)
MonochromaticH ± 0°, varied S/L210°, 210° (light/dark)
ComplementaryH₂ = (H + 180°) % 360°210°, 30°
AnalogousH₂ = (H ± 30°) % 360°180°, 210°, 240°
TriadicH₂ = (H ± 120°) % 360°90°, 210°, 330°
Split-ComplementaryH₂ = (H ± 150°) % 360°60°, 210°, 0°
Hue WrappingH = (H + x) % 360°350° + 30° → 20°

Frequently Asked Questions

A color palette is a collection of selected colors used together to create visual harmony in a design.

It generates palettes by applying angular transformations to a base hue in color space, following rules from color theory such as complementary or triadic schemes.

Yes. You can adjust harmony rules, hue variance, lightness/saturation range, and lock specific colors.

Adjust the lightness and contrast settings. The tool highlights non-compliant colors and suggests alternatives.

Yes. The generator simulates color blindness types (e.g., deuteranopia) and ensures perceptual distinctiveness using the CIELAB color space.

Absolutely. Enter any HEX/RGB color to serve as the anchor hue, and select a harmony rule to generate a matching scheme.

Triadic schemes span large hue distances (120° apart). Consider narrowing the saturation/lightness spread or blending with analogous tones for balance.

Examples include:<ul><li>Hue wrapping at 360° (e.g., 350° + 30° → 20°)</li><li>Low contrast despite theoretical harmony</li><li>Same hue, different chroma/lightness (e.g., muted vs. neon)</li><li>Color blindness collapsing distinct hues into indistinguishable tones</li><li>Screen calibration affecting perceived harmony</li></ul>

Start with a base color, use triadic or analogous harmony, maintain contrast for text, and test in both light and dark modes.

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