The brand color palette for 500px is made up of 3 colors.
Source: 500px Brand Standards
Last accessed: 2/24/15
#0099e5 | 500px (#0099e5) Hex: #0099e5 RGB: 0, 153, 229 |
#ff4c4c | 500px (#ff4c4c) Hex: #ff4c4c RGB: 255, 76, 76 |
#34bf49 | 500px (#34bf49) Hex: #34bf49 RGB: 52, 191, 73 |