North Sea Blue Color – #343c4c: Codes and Complete Breakdown
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The North Sea Blue color hex code is #343c4c, and it is composed of 20% red, 24% green and 30% blue.
North Sea Blue is a dark, muted, and cool color at 32% saturation. It has a contrast ratio of 11.07:1 against a white background, which passes WCAG AA (Web Content Accessibility Guidelines, Level AA) compliance.
For better visibility, it is recommended to use the North Sea Blue color (#343c4c) against light backgrounds.

North Sea Blue Color Shades
Complementary colors
Triadic colors
Tints or lighter colors
Darker colors
Analogous colors
Monochromatic colors
#343c4c
North Sea Blue Color Codes and Information
Here’s a complete breakdown of the color North Sea Blue, including its HEX, RGB, HSL, and CMYK values, as well as other information about the color.
| Data Type | Values/Details |
|---|---|
| Hex | #343c4c |
| RGB | rgb(52,60,76) |
| HSL | hsl(220,18.8%,25.1%) |
| CMYK | 32, 21, 0, 70 |
| HSV | 220, 32, 30 |
| RGB % | 20, 24, 30 |
| XYZ | 4.3, 4.5, 7.5 |
| LAB | 25.3, 0.3, -10.8 |
| Color Category | Dark |
| Color Family | Blue |
| Saturation | 32% |
| Temperature | Cool |
| Contrast Ratio Againt White (#ffffff) | 11.07 (passes WCAG AA) |
| Contrast Ratio Againt Black (#000000) | 1.9 (fails WCAG AA) |
Similar Colors to North Sea Blue Color
#16b8f3

Zima Blue
#00308f

US Air Force Blue
#8093a4

Dusty Blue
#4169e1

Royal Blue
#dde0df

Barely Blue
#9bb3bc

Blue Shell
#cfe2ef

Weak Blue
#004d67

Work Blue









