local color = require'color'Color computation in HSL space. Shamelessly ripped off and modified from Sputnik's colors lib, by Yuri Takhteyev.
r, g, b, s, L are in 0..1 range.h is in 0..360 range.color.hsl_to_rgb(h, s, L) -> r, g, b |
HSL -> RGB; h is modulo 360; s, L are clamped to range |
color.rgb_to_hsl(r, g, b) -> h, s, L |
RGB -> HSL; r, g, b are clamped to range |
color.rgb_to_string(r, g, b) -> s |
generate '#rrggbb' hex color |
color.string_to_rgb(s) -> r, g, b | nil |
parse a '#rrggbb' hex color |
color.rgba_to_string(r, g, b, a) -> s |
generate a '#rrggbbaa' hex color |
color.string_to_rgba(s) -> r, g, b, a | nil |
parse a '#rrggbbaa' hex color (the 'aa' part is optional) |
color('#rrggbb') -> col |
create a new HSL color object from a RGB string |
color(h, s, L) -> col |
create a new HSL color object from HSL values |
col.h, col.s, col.L |
color fields (for reading and writing) |
col:hsl() -> h, s, L col() -> h, s, L |
color fields unpacked |
col:rgb() -> r, g, b |
convert to RGB |
col:tostring() -> '#rrggbb' |
convert to RGB string |
col:hue_offset(hue_delta) -> color |
create a new color with a different hue |
col:complementary() -> color |
create a complementary color |
col:neighbors(angle) -> color1, color2 |
create two neighboring colors (by hue), offset by "angle" |
col:triadic() -> color1, color2 |
create two new colors to make a triadic color scheme |
col:split_complementary(angle) -> color1, color2 |
create two new colors, offset by angle from a color's complementary |
col:desaturate_to(saturation) -> color |
create a new color with saturation set to a new value |
col:desaturate_by(r) -> color |
create a new color with saturation set to a old saturation times r |
col:lighten_to(lightness) -> color |
create a new color with lightness set to a new value |
col:lighten_by(r) -> color |
create a new color with lightness set to its lightness times r |
col:variations(f, n) -> {color1, ...} |
create n variations of a color using supplied function and return them as a table |
col:tints(n) -> {color1, ...} |
create n tints of a color and return them as a table |
col:shades(n) -> {color1, ...} |
create n shades of a color and return them as a table |
col:tint(r) -> color |
create a color tint |
col:shade(r) -> color |
create a color shade |