Library goog.color

Blend two colors together, using the specified factor to indicate the weight given to the first color

Calculate color difference between two colors. Helper method for goog.color.highContrast()

Adds black to the specified color, darkening it

Converts a hex representation of a color to HSL.

Converts a hex representation of a color to HSV

Converts a hex representation of a color to RGB.

Converts a hex representation of a color to RGB.

Find the "best" (highest-contrast) of the suggested colors for the prime color. Uses W3C formula for judging readability and visual accessibility: http://www.w3.org/TR/AERT#color-contrast

Converts from an hsl array to a hex string

Converts a color from HSL color space to RGB color space.

Calculates the Euclidean distance between two color vectors on an HSL sphere. A demo of the sphere can be found at: http://en.wikipedia.org/wiki/HSL_color_space In short, a vector for color (H, S, L) in this system can be expressed as (S*L'*cos(2*PI*H), S*L'*sin(2*PI*H), L), where L' = abs(L - 0.5), and we simply calculate the 1-2 distance using these coordinates

Converts from h,s,l values to a hex string

Converts a color from HSL color space to RGB color space. Modified from {@link http://www.easyrgb.com/math.html}

Converts from an HSV array to a hex string

Converts an HSV triplet to an RGB array

Converts from h,s,v values to a hex string

Converts an HSV triplet to an RGB array. V is brightness because b is reserved for blue in RGB.

Helper for hslToRgb.

Checks if a string is a normalized hex color. We expect strings of the format #RRGGBB (ex: #1b3d5f) using only lowercase letters.

Determines if the given string can be parsed as a color. {@see goog.color.parse}.

Checks if a string is a valid hex color. We expect strings of the format #RRGGBB (ex: #1b3d5f) or #RGB (ex: #3CA == #33CCAA).

Checks if a string is a valid rgb color. We expect strings of the format '(r, g, b)', or 'rgb(r, g, b)', where each color component is an int in [0, 255].

Adds white to the specified color, lightening it

Normalize an hex representation of a color

Parses a color out of a string.

Parses red, green, blue components out of a valid rgb color string.

Takes a string a prepends a '#' sign if one doesn't exist. Small helper method for use by goog.color and friends.

Takes a hex value and prepends a zero if it's a single digit. Small helper method for use by goog.color and friends.

Converts a color from RGB to hex representation.

Converts a color from RGB color space to HSL color space.

Converts from r,g,b values to an array of HSV values

Takes an array of [r, g, b] and converts it into a string appropriate for CSS styles.

Converts a color from RGB to hex representation.

Converts a color from RGB color space to HSL color space. Modified from {@link http://en.wikipedia.org/wiki/HLS_color_space}.

Converts from RGB values to an array of HSV values.

Calculate difference in brightness of two colors. Helper method for goog.color.highContrast()

Calculate brightness of a color according to YIQ formula (brightness is Y). More info on YIQ here: http://en.wikipedia.org/wiki/YIQ. Helper method for goog.color.highContrast()