Neptune Blue Color – #2e5d9d: Codes and Complete Breakdown
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The Neptune Blue color hex code is #2e5d9d, and it is composed of 18% red, 36% green and 62% blue.
Neptune Blue is a dark, bright, and cool color at 71% saturation. It has a contrast ratio of 6.63:1 against a white background, which passes WCAG AA (Web Content Accessibility Guidelines, Level AA) compliance.
For better visibility, it is recommended to use the Neptune Blue color (#2e5d9d) against light backgrounds.

Neptune Blue Color Shades
Complementary colors
Triadic colors
Tints or lighter colors
Darker colors
Analogous colors
Monochromatic colors
#2e5d9d
Neptune Blue Color Codes and Information
Here’s a complete breakdown of the color Neptune Blue, including its HEX, RGB, HSL, and CMYK values, as well as other information about the color.
| Data Type | Values/Details |
|---|---|
| Hex | #2e5d9d |
| RGB | rgb(46,93,157) |
| HSL | hsl(215,54.7%,39.8%) |
| CMYK | 71, 41, 0, 38 |
| HSV | 215, 71, 62 |
| RGB % | 18, 36, 62 |
| XYZ | 11.1, 10.8, 33.4 |
| LAB | 39.2, 6.3, -39.6 |
| Color Category | Dark |
| Color Family | Blue |
| Saturation | 71% |
| Temperature | Cool |
| Contrast Ratio Againt White (#ffffff) | 6.63 (passes WCAG AA) |
| Contrast Ratio Againt Black (#000000) | 3.17 (fails WCAG AA) |
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