Interval Color Tool

Professional Color Management

Only for iPhone

Free

iPhone

Create beautiful color palettes with modern OKLCH color space support. Perfect for designers who need precise, perceptually uniform color control. Interval - Professional Color Palette Manager Create, organize, and export beautiful color palettes for your design projects. Interval supports modern perceptually uniform color spaces alongside traditional formats, giving you the tools to create harmonious, professional color schemes. KEY FEATURES • Projects - Organize palettes into projects for better workflow management • Multiple Color Formats - OKLCH, OKLAB, HSL, HSB, RGB, HEX, and CMYK • Alpha Channel Support - Full transparency control for all your colors • Color Interpolation - Generate smooth transitions between colors with customizable steps • Color Harmonies - Instantly create complementary, triadic, analogous, and more • Bulk Edit - Adjust temperature, lightness, and saturation across multiple colors • Export Options - Copy to clipboard or export in various formats • Visual Project Previews - Dynamic grid layouts showcase your color collections PERCEPTUALLY UNIFORM COLOR SPACES Interval supports OKLCH and OKLAB - modern color spaces designed for how humans actually perceive color. Create more natural-looking gradients and harmonies compared to traditional RGB-based systems. These color spaces ensure consistent lightness and smooth transitions, making your palettes look better across all media. POWERFUL INTERPOLATION Generate smooth color transitions between any two colors with precision control over the number of steps, easing curves, and hue interpolation methods. Perfect for creating gradient palettes or exploring color relationships. COLOR HARMONIES Generate harmonious color combinations instantly: • Complementary - Opposite colors on the color wheel • Triadic - Three evenly spaced colors • Square - Four evenly spaced colors • Split Complement - A color plus two adjacent to its complement • Analogous - Adjacent colors on the color wheel FLEXIBLE EXPORT Export your palettes in multiple formats: • Copy to clipboard: HSL, HSB, RGB, HEX, OKLCH, OKLAB, CMYK • Professional formats for Adobe, Sketch, and more PERFECT FOR • UI/UX Designers • Graphic Designers • Digital Artists • Brand Designers • Web Developers • Anyone working with color NO ACCOUNT REQUIRED All features are free with no account required. Your palettes are stored securely on your device with full privacy. MODERN & INTUITIVE Built with SwiftUI for a native iOS experience. Clean interface, smooth animations, and thoughtful interactions make working with color a joy. Start creating beautiful color palettes today with Interval.

Ratings & Reviews

  • 5.0
    out of 5
    1 Ratings

The developer, Craig Michael Butterworth, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    Craig Michael Butterworth
    Size
    2.1 MB
    Category
    Graphics & Design
    Compatibility
    Requires iOS 18.6 or later.
    • iPhone
      Requires iOS 18.6 or later.
    Languages
    English
    Age Rating
    4+
    Copyright
    © 2026 Craig Butterworth
  • Developer Website
  • Privacy Policy

    • More by Craig Michael Butterworth

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