Poseidon to Space Colonisation Gradient
CSS
background: linear-gradient(90deg, #143c5d 0%, #150f5b 100%);
From Poseidon (#143C5D) to Space Colonisation (#150F5B). The two hues are 38° apart on the color wheel, close enough that the blend stays clean without a muddy middle.
Colors along the gradient
| Name | HEX | RGB | HSL | CMYK | |
|---|---|---|---|---|---|
| Poseidon | #143C5D | 20, 60, 93 | 207°, 65%, 22% | 78, 35, 0, 64 | |
| 25% (near Mythical Night) | #14315D | 20, 49, 93 | 216°, 65%, 22% | 78, 47, 0, 64 | |
| 50% (near Fibonacci Blue) | #15265C | 21, 38, 92 | 226°, 63%, 22% | 77, 59, 0, 64 | |
| 75% (near Fibonacci Blue) | #151A5C | 21, 26, 92 | 236°, 63%, 22% | 77, 72, 0, 64 | |
| Space Colonisation | #150F5B | 21, 15, 91 | 245°, 72%, 21% | 77, 84, 0, 64 |
Halfway along, the gradient is #15265C, closest to the named color Fibonacci Blue. The stops are mixed in RGB, the way browsers draw a linear gradient by default.
Text on this gradient
White text reads best on both ends, so one text color works across the whole gradient. The two end colors have a contrast ratio of 1.47:1, so the change is gentle.
Other ways to use it
- Top to bottom:
linear-gradient(180deg, #143c5d, #150f5b) - Diagonal:
linear-gradient(135deg, #143c5d, #150f5b) - Radial, from the center out:
radial-gradient(circle, #143c5d, #150f5b) - Tailwind CSS:
bg-gradient-to-r from-[#143c5d] to-[#150f5b]
Gradients like this work well for page headers, buttons, cards and slide backgrounds. Keep body text on a solid color for the best readability.
Related gradients
Questions
What are the HEX codes of the Poseidon to Space Colonisation gradient?
It starts at #143C5D (Poseidon) and ends at #150F5B (Space Colonisation), with #15265C in the middle.
How do I reverse the gradient?
Swap the two colors or change the angle from 90deg to 270deg: linear-gradient(270deg, #143c5d, #150f5b) runs from Space Colonisation on the left to Poseidon on the right.