Prism Flutter 🌈 #

Flutter extensions for the Prism color manipulation library.

Seamlessly convert between RayRgb8/RayRgb16 and Flutter Color objects with intuitive extension methods.

Resources #

• Repository on GitHub
• Package on Pub.dev
• Documentation
• Dart Package

Features #

• 🔄 Seamless conversion: Extensions for both RayRgb8 → Color and Color → RayRgb8
• 🎨 Perfect fidelity: Preserves all ARGB color information
• ⚡ Zero overhead: Direct value conversions with no performance cost
• 🔧 Enhanced manipulation: Access RayRgb8's powerful color operations from Flutter Colors
• 🎯 Type safe: Comprehensive API with proper error handling

Usage #

RayRgb8 to Flutter Color #

import 'package:prism_flutter/prism_flutter.dart';

// Convert RayRgb8 to Flutter Color
final ray = RayRgb8.fromHex('#FF0000');
final color = ray.toColor();

// Convert with specific opacity
final semiTransparent = ray.toColorWithOpacity(0.5);

Flutter Color to RayRgb8 #

import 'package:flutter/material.dart';
import 'package:prism_flutter/prism_flutter.dart';

// Convert Flutter Color to RayRgb8
final color = Colors.red;
final ray = color.toRayRgb8();

Enhanced Color Manipulation #

// Chain RayRgb8 operations on Flutter Colors
final result = Colors.red
    .toRayRgb8()
    .withOpacity(0.8)
    .lerp(Colors.blue.toRayRgb8(), 0.3)
    .inverse
    .toColor();

// Create accessibility schemes from Flutter Colors
final scheme = RayScheme.fromRay(Colors.blue.toRayRgb8());
final textColor = scheme.source.onRay.toColor();     // Optimal contrast
final darkSurface = scheme.surfaceDark.toColor();    // Dark theme surface

// Use pre-built palettes with Flutter
final materialBlue = MaterialRgb.blue.shade500?.toColor();
final cssRed = CssRgb.red.source.toColor();

// Access RayRgb8 analysis methods
final luminance = Colors.grey.toRayRgb8().computeLuminance();
final bestContrast = Colors.grey.toRayRgb8().maxContrast(
  Colors.black.toRayRgb8(),
  Colors.white.toRayRgb8(),
);

Perfect Round-Trip Conversions #

// RayRgb8 → Color → RayRgb8 maintains perfect fidelity
final originalRay = RayRgb8.fromHex('#7F123456');
final color = originalRay.toColor();
final backToRay = color.toRayRgb8();
assert(backToRay == originalRay); // ✅ Always true

// Color → RayRgb8 → Color maintains perfect fidelity
const originalColor = Color(0x7F123456);
final ray = originalColor.toRayRgb8();
final backToColor = ray.toColor();
assert(backToColor == originalColor); // ✅ Always true

API Reference #

RayRgb8 Extensions #

• toColor() - Convert RayRgb8 to Flutter Color
• toColorWithOpacity(double opacity) - Convert RayRgb8 to Flutter Color with specific opacity

Flutter Color Extensions #

• toRayRgb8() - Convert Flutter Color to RayRgb8

All conversions preserve complete ARGB color information with perfect fidelity.

Related Packages #

• prism - The core color manipulation library

License #

MIT License © 2025 Jimmy Forrester-Fellowes - see LICENSE file for details.

For an introduction to Prsim see Jimmy's blog post.