---
title: useBreakpointValue
description: "`useBreakpointValue`は、提供されたオブジェクトから現在のブレイクポイントの値を返すカスタムフックです。このフックは、ウィンドウのサイズの変更を監視し、適切な値を返します。"
links:
  - source: https://github.com/yamada-ui/yamada-ui/tree/main/packages/react/src/hooks/use-breakpoint
  - storybook: https://yamada-ui.github.io/yamada-ui?path=/story/hooks-usebreakpointvalue--basic
---

```tsx
const breakpoint = useBreakpoint()
const bg = useBreakpointValue({
  base: "red.500",
  sm: "purple.500",
  md: "yellow.500",
  lg: "green.500",
  xl: "blue.500",
  "2xl": "pink.500",
})

return (
  <Box
    bg={bg}
    color="white"
    p="md"
    transitionDuration="moderate"
    transitionProperty="all"
  >
    The current breakpoint is "{breakpoint}"
  </Box>
)
```

## 使い方

```tsx
import { useBreakpointValue } from "@yamada-ui/react"
```

```tsx
import { useBreakpointValue } from "@/components/ui"
```

```tsx
import { useBreakpointValue } from "@workspaces/ui"
```

```tsx
const bg = useBreakpointValue({
  base: "red.500",
  sm: "purple.500",
  md: "yellow.500",
  lg: "green.500",
  xl: "blue.500",
  "2xl": "pink.500",
})
```