---
title: "contrast(_:)"
framework: swiftui
role: symbol
role_heading: Instance Method
path: "swiftui/view/contrast(_:)"
---

# contrast(_:)

Sets the contrast and separation between similar colors in this view.

## Declaration

```swift
nonisolated func contrast(_ amount: Double) -> some View

```

## Parameters

- `amount`: The intensity of color contrast to apply. negative values invert colors in addition to applying contrast.

## Return Value

Return Value A view that applies color contrast to this view.

## Discussion

Discussion Apply contrast to a view to increase or decrease the separation between similar colors in the view. In the example below, the contrast(_:) modifier is applied to a set of red squares each containing a contrasting green inner circle. At each step in the loop, the contrast(_:) modifier changes the contrast of the circle/square view in 20% increments. This ranges from -20% contrast (yielding inverted colors — turning the red square to pale-green and the green circle to mauve), to neutral-gray at 0%, to 100% contrast (bright-red square / bright-green circle). Applying negative contrast values, as shown in the -20% square, will apply contrast in addition to inverting colors. struct CircleView: View {     var body: some View {         Circle()             .fill(Color.green)             .frame(width: 25, height: 25, alignment: .center)     } }

struct Contrast: View {     var body: some View {         HStack {             ForEach(-1..<6) {                 Color.red.frame(width: 50, height: 50, alignment: .center)                     .overlay(CircleView(), alignment: .center)                     .contrast(Double($0) * 0.2)                     .overlay(Text("\(Double($0) * 0.2 * 100, specifier: "%.0f")%")                                  .font(.callout),                              alignment: .bottom)                     .border(Color.gray)             }         }     } }

## See Also

### Transforming colors

- [brightness(_:)](swiftui/view/brightness(_:).md)
- [colorInvert()](swiftui/view/colorinvert().md)
- [colorMultiply(_:)](swiftui/view/colormultiply(_:).md)
- [saturation(_:)](swiftui/view/saturation(_:).md)
- [grayscale(_:)](swiftui/view/grayscale(_:).md)
- [hueRotation(_:)](swiftui/view/huerotation(_:).md)
- [luminanceToAlpha()](swiftui/view/luminancetoalpha().md)
- [materialActiveAppearance(_:)](swiftui/view/materialactiveappearance(_:).md)
- [materialActiveAppearance](swiftui/environmentvalues/materialactiveappearance.md)
- [MaterialActiveAppearance](swiftui/materialactiveappearance.md)