使用0x八位颜色设置渐变透明度为什么与#八位资源颜色值不同

@Entry
@Component
struct ColorGradientExample {
  @State transparent: number | string = '#00333333';
  private bool: boolean = true;

  build() {
    Column({ space: 5 }) {
      Text('linearGradient')
        .fontSize(12)
        .width('90%')
        .fontColor(0xCCCCCC)
      Row()
        .width('90%')
        .height(150)
        .linearGradient({
          direction: GradientDirection.Bottom,
          colors: [[this.transparent, 0.0], [0x80000000, 1.0]]
        })
      Button('Switch color resources')
        .onClick(() => {
          if (this.bool) {
            this.transparent = 0x00333333;
            this.bool = false;
          } else {
            this.transparent = '#00333333';
            this.bool = true;
          }
        })
    }
    .justifyContent(FlexAlign.Center)
    .width('100%')
    .height('100%')
    .padding({ top: 5 })
  }
}