SwiftUI Color.red

.red

Destructive Actions, Errors & Badges

Adaptive System Token•iOS 13.0+, macOS 10.15+, tvOS 13.0+, watchOS 6.0+, visionOS 1.0+

Complete technical specification and developer reference for Red in Apple's SwiftUI design system. In light appearance, it resolves to HEX #FF383C; in dark appearance, it dynamically adapts to HEX #FF4245. Features wide-gamut Display P3 values, UIKit bridge (UIColor.systemRed), AppKit bridge (NSColor.systemRed), WCAG contrast audit, and Xcode drop-in initializers.

Light Mode#FF383C

Dark Mode#FF4245

Red Color Preview

SwiftUI's adaptable red.

Color.red

Copy:

Dynamic Asset

Destructive Actions, Errors & Badges

iOS 13.0+, macOS 10.15+, tvOS 13.0+, watchOS 6.0+, visionOS 1.0+

Initializers & Color Spaces

Color(r:g:b:)Color(red: 1.000, green: 0.220, blue: 0.235)

Color(r:g:b:op:)Color(red: 1.000, green: 0.220, blue: 0.235, opacity: 1.00)

Color(hue:sat:bri:)HSBColor(hue: 0.997, saturation: 0.780, brightness: 1.000, opacity: 1.00)

Color(.displayP3)Wide GamutColor(.displayP3, red: 0.922, green: 0.298, blue: 0.275, opacity: 1.00)

Color(.sRGB)Color(.sRGB, red: 1.000, green: 0.220, blue: 0.235, opacity: 1.00)

Color(hex:)ExtensionColor(hex: "#FF383C")

#colorLiteralXcode#colorLiteral(red: 1.000, green: 0.220, blue: 0.235, alpha: 1.00)

Color(uiColor:)iOSColor(uiColor: UIColor(red: 1.000, green: 0.220, blue: 0.235, alpha: 1.00))

Active HEX: #FF383CP3 R: 0.922 G: 0.298 B: 0.275

Technical Color Specifications

Exact resolved HEX codes, sRGB 8-bit components, HSL, and normalized Swift floating-point decimals for Light and Dark modes.

Color Metric / Space	Light Appearance	Dark Appearance	Swift Code Literal
HEX Code	#FF383C	#FF4245	Color(hex: "#FF383C")
sRGB (0–255)	rgb(255, 56, 60)	rgb(255, 66, 69)	(r: 1.000, g: 0.220, b: 0.235)
Display P3 (Wide Gamut)	P3 (0.922, 0.298, 0.275)	P3 (0.922, 0.325, 0.306)	Color(.displayP3, ...)
HSL / HSB	hsl(359, 100%, 61%)	hsl(359, 100%, 63%)	Color(hue:sat:bri:)
Platform Bridge	UIKit: `UIColor.systemRed`	AppKit: `NSColor.systemRed`	Color(uiColor:) / Color(nsColor:)

Light Appearance

Light Theme

HEX Code

#FF383C

RGB (0–255)

rgb(255, 56, 60)

HSL

hsl(359, 100%, 61%)

Normalized Swift Literal:

(r: 1.000, g: 0.220, b: 0.235)

Dark Appearance

Dark Theme

HEX Code

#FF4245

RGB (0–255)

rgb(255, 66, 69)

HSL

hsl(359, 100%, 63%)

Normalized Swift Literal:

(r: 1.000, g: 0.259, b: 0.271)

Drop-In Developer Snippets

Ready-to-paste code blocks for Xcode asset catalogs and Swift files.

Xcode Location: Save as Contents.json inside Assets.xcassets/Red.colorset/

Includes Light + Dark Modes

Contents.json

{
  "colors": [
    {
      "color": {
        "color-space": "srgb",
        "components": {
          "red": "1.000",
          "green": "0.220",
          "blue": "0.235",
          "alpha": "1.000"
        }
      },
      "idiom": "universal"
    },
    {
      "appearances": [
        {
          "appearance": "luminosity",
          "value": "dark"
        }
      ],
      "color": {
        "color-space": "srgb",
        "components": {
          "red": "1.000",
          "green": "0.259",
          "blue": "0.271",
          "alpha": "1.000"
        }
      },
      "idiom": "universal"
    }
  ],
  "info": {
    "author": "xcode",
    "version": 1
  }
}

Live UI Component Sandbox

Preview Color.red inside standard Apple interface components.

Interactive Controls

Active TagBadge 99+

Toggle Tint

Container & Typography Styling

●SwiftUI Notification

Just now

Demonstrates how Apple designers pair system background tints with dynamic Red accents.

Dynamic Headline in Red

.foregroundStyle(.red)

Platform Implementation Snippets

Ready-to-use Swift code for SwiftUI, UIKit, and AppKit applications.

SwiftUI (Swift 5.9+)

// Standard SwiftUI Usage
Text("Hello, Apple")
    .foregroundStyle(Color.red)

// Background & Shape Fill
RoundedRectangle(cornerRadius: 16)
    .fill(Color.red)
    .frame(width: 200, height: 50)

// Prominent Action Button
Button("Confirm Action") {
    // Action
}
.buttonStyle(.borderedProminent)
.tint(Color.red)

WCAG 2.1 Accessibility Contrast Audit

Contrast calculations of Red against pure white and iOS OLED dark surfaces.

Light Mode (#FF383C)on White (#FFF)

Contrast Ratio:3.57:1

Normal Text (4.5:1 AA): Fail

Dark Mode (#FF4245)on Dark (#1C1C1E)

Contrast Ratio:4.96:1

Normal Text (4.5:1 AA): Pass (AA)

Recommended HIG Use Cases

Destructive buttons (delete, sign out, discard)
Form validation error messages and alerts
Notification badges and urgent counters

Anti-Patterns to Avoid

General non-critical navigation links
Large unmuted background fills

Browse More SwiftUI Colors

Quickly jump to other Apple system colors and semantic tokens.

Frequently Asked Questions

How do I use Color.red in SwiftUI?

In SwiftUI, apply the color directly using view modifiers like .foregroundStyle(.red), .tint(.red), or .background(.red). You can also instantiate it via Color.red.

What is the HEX code for SwiftUI Red in light and dark mode?

In light appearance, SwiftUI Red resolves to #FF383C. In dark appearance, it automatically adapts to #FF4245.

What is the UIKit and AppKit equivalent of SwiftUI Color.red?

The UIKit equivalent is UIColor.systemRed (accessible in SwiftUI via Color(uiColor: .systemRed)). The AppKit equivalent is NSColor.systemRed (accessible via Color(nsColor: .systemRed)).

Does SwiftUI Color.red adapt automatically to dark mode?

Yes, Color.red is a dynamic Apple system token that automatically updates between light (#FF383C) and dark (#FF4245) appearances when the system appearance changes.

What is the Display P3 and sRGB value of Color.red?

Color.red uses resolved sRGB values (#FF383C in light, #FF4245 in dark) and supports wide color gamut Display P3 coordinates for high-fidelity rendering on Apple Retina displays.