README
¶
color
Color formats implemented in golang (GO)
Supported formats
RGBA
Red, green, blue, alpha
// Get RGBA values
r, g, b, a := color.RGBA()
// Parse RGBA
color2 := color.Color{255, 255, 255, 255}
HSLA
Hue, saturation, lightness, alpha
⚠ the colors are internally represented as RGBA, so there may be a slight loss in precision if they are converted.
// Get HSLA values
h, s, l, a := color.HSLA()
// Parse HSLA float values (0.0-1.0)
color2 := color.ParseHSLA(1.0, 1.0, 1.0, 1.0)
// Parse HSLA whole numbers values (0-360), (0-100) * 3
color3 := color.ParseHSLAWhole(360, 100, 100, 100)
CMYKA
Cyan, magenta, yellow, black, alpha. Alpha is not often used in situations involving CMYK, but it is available
⚠ the colors are internally represented as RGBA, so there may be a slight loss in precision if they are converted.
// Get CMYKA values
c, m, y, k, a := color.CMYKA()
// Parse CMYKA float values (0-1.0)
color2 := color.ParseCMYKA(1.0, 1.0, 1.0, 0.0)
// Parse CMYKA whole values (0-100)
color3 := color.ParseCMYKAWhole(100, 100, 100, 0)
Documentation
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Index ¶
- Variables
- type Color
- func (color *Color) CMYKA() (c, m, y, k, a float64)
- func (color *Color) CMYKAWhole() (c, m, y, k, a uint8)
- func (color Color) Equal(c Color) bool
- func (color *Color) HSLA() (h, s, l, a float64)
- func (color *Color) HSLAWhole() (h uint16, s, l, a uint8)
- func (color *Color) MarshalJSON() ([]byte, error)
- func (color *Color) MarshalText() ([]byte, error)
- func (color *Color) RGBA() (r, g, b, a uint8)
- func (color Color) String() string
- func (color *Color) UnmarshalJSON(b []byte) (err error)
- func (color *Color) UnmarshalText(d []byte) (err error)
Constants ¶
This section is empty.
Variables ¶
var (
ErrorInvalidColor = errors.New("invalid color")
)
Functions ¶
This section is empty.
Types ¶
type Color ¶
type Color struct {
Red, Green, Blue, Alpha uint8
}
Color represents a color with 8 bits allocated to each of red, green, blue, alpha
func ParseCMYKA ¶
func ParseCMYKAWhole ¶
func ParseHSLAWhole ¶
ParseHSLAWhole parses whole numbers instead of doubles representing the h, s, l, a values. h (0-360), s (0-100), l (0-100), a (0-100)
func ParseInt64 ¶ added in v0.1.0
ParseInt64 converts an int64 into a color. For example, 0xffffff
func ParseString ¶
ParseString parses a hex color. Supports the formats #000000, #00000000 (with alpha)
func (*Color) CMYKAWhole ¶
func (*Color) HSLA ¶
HSLA converts a color to its hue, saturation, lightness and alpha parts. h (0.0-360.0), s (0.0-1.0), l (0.0-1.0), a (0.0-1.0)
Source Files