颜色

• d3.rgb - specify a color in RGB space.
• rgb.brighter - increase RGB channels by some exponential factor (gamma).
• rgb.darker - decrease RGB channels by some exponential factor (gamma).
• rgb.hsl - convert from RGB to HSL.
• rgb.toString - convert an RGB color to a string.
• d3.hsl - specify a color in HSL space.
• hsl.brighter - increase lightness by some exponential factor (gamma).
• hsl.darker - decrease lightness by some exponential factor (gamma).
• hsl.rgb - convert from HSL to RGB.
• hsl.toString - convert an HSL color to a string.
• d3.lab - specify a color in Lab* space.
• lab.brighter - increase lightness by some exponential factor (gamma).
• lab.darker - decrease lightness by some exponential factor (gamma).
• lab.rgb - convert from Lab* to RGB.
• lab.toString - convert a Lab* color to a string.
• d3.hcl - specify a color in HCL space.
• hcl.brighter - increase lightness by some exponential factor (gamma).
• hcl.darker - decrease lightness by some exponential factor (gamma).
• hcl.rgb - convert from HCL to RGB.
• hcl.toString - convert an HCL color to a string.