Opt for the svg version when using logos in web contexts.

Short Logos

<img src="//cdn.ldiglobal.org/ldi/short.svg" alt="LDi" />
<img src="//cdn.ldiglobal.org/ldi/short.png" alt="LDi" />

<img src="//cdn.ldiglobal.org/ldi/short-black.svg" alt="LDi" />
<img src="//cdn.ldiglobal.org/ldi/short-black.png" alt="LDi" />

<img src="//cdn.ldiglobal.org/ldi/short-white.svg" alt="LDi" />
<img src="//cdn.ldiglobal.org/ldi/short-white.png" alt="LDi" />

Long Logos

<img src="//cdn.ldiglobal.org/ldi/long.svg" alt="LDi" />
<img src="//cdn.ldiglobal.org/ldi/long.png" alt="LDi" />

<img src="//cdn.ldiglobal.org/ldi/long-black.svg" alt="LDi" />
<img src="//cdn.ldiglobal.org/ldi/long-black.png" alt="LDi" />

<img src="//cdn.ldiglobal.org/ldi/long-white.svg" alt="LDi" />
<img src="//cdn.ldiglobal.org/ldi/long-white.png" alt="LDi" />