Class ColorUtils

java.lang.Object

com.arbergashi.charts.util.ColorUtils

public final class ColorUtils
extends Object

Color utilities.

Since:

2025-06-01

Version:

1.0.0

Author:

Arber Gashi

Method Summary

Modifier and Type	Method	Description
static Color	adjustBrightness(Color c, double factor)	Adjust brightness by multiplying RGB channels by factor (>0).
static Color	getContrastColor(Color c)	Returns BLACK or WHITE depending on which contrasts better with the input color.
static Color	interpolate(Color a, Color b, float t)	Linearly interpolate between two colors in RGBA space.
static Color	withAlpha(Color c, float alpha)	Creates a new color based on c, but with a new alpha value.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

withAlpha

public static Color withAlpha(Color c,
 float alpha)

Creates a new color based on c, but with a new alpha value.

Note: Creates a new object. Should be cached in render loops if the color does not change.

Parameters:

c - Base color

alpha - Alpha (0.0 - 1.0)

Returns:

New Color instance

adjustBrightness

public static Color adjustBrightness(Color c,
 double factor)

Adjust brightness by multiplying RGB channels by factor (>0). Clamps to 0-255.

getContrastColor

public static Color getContrastColor(Color c)

Returns BLACK or WHITE depending on which contrasts better with the input color.

interpolate

public static Color interpolate(Color a,
 Color b,
 float t)

Linearly interpolate between two colors in RGBA space.