Flutter / Compose to HSL converter

Paste a Flutter / Compose value, get HSL instantly. Any other format works too.

From Flutter / Compose

Read as Flutter code

HSL valuehsl(10.59, 100%, 60%)

HSL to Flutter / Compose

Adjust the color

Hue11°

Opacity100%

Lightness68%

Chroma0.210

Hue34°

Every other format

Flutter / Compose to HSL examples

Color	Flutter / Compose	HSL
	Color(0xFFFF0000)	hsl(0, 100%, 50%)
	Color(0xFF00FF00)	hsl(120, 100%, 50%)
	Color(0xFF0000FF)	hsl(240, 100%, 50%)
	Color(0xFFFFFFFF)	hsl(0, 0%, 100%)
	Color(0xFF000000)	hsl(0, 0%, 0%)
	Color(0xFF808080)	hsl(0, 0%, 50.2%)
	Color(0xFFFF5733)	hsl(10.59, 100%, 60%)
	Color(0xFF3B82F6)	hsl(217.22, 91.22%, 59.8%)
	Color(0xFF10B981)	hsl(160.12, 84.08%, 39.41%)
	Color(0xFFF59E0B)	hsl(37.69, 92.13%, 50.2%)
	Color(0xFF8B5CF6)	hsl(258.31, 89.53%, 66.27%)
	Color(0xFFEC4899)	hsl(330.37, 81.19%, 60.39%)

About Flutter / Compose and HSL

Flutter and Jetpack Compose write a color as one 32-bit ARGB number, like Color(0xFFFF5733). The two hex digits after 0x are the alpha, and FF means fully opaque.

HSL describes hue in degrees, saturation and lightness in percent. It is easy to read, but its lightness is not perceptually even: yellow at 50% looks much lighter than blue at 50%.

How the conversion works

We read the Flutter / Compose value, convert it to CIE XYZ with the matrices from the CSS Color 4 specification and then into HSL. Values outside the target gamut are mapped by the CSS Color 4 algorithm, which keeps lightness and hue and reduces chroma.

Questions and answers

How do I convert Flutter / Compose to HSL?

Paste or type a Flutter / Compose value into the field above. PickShade converts it with the CSS Color 4 formulas as you type, and one click copies the HSL value.

Is the Flutter / Compose to HSL conversion exact?

The math is exact and the result is rounded only for display, with enough digits to convert back to the same color. If the color does not fit the target gamut, PickShade warns you and shows the nearest color that fits.

Can I get other formats at the same time?

Yes. Every other format, including OKLCH, Display P3, Tailwind, SwiftUI, Flutter and Android, is listed below the result and copies with one click.

Is this converter free?

Yes. It is free, needs no sign-up and runs entirely in your browser.