Copenhagen Blue Color – #21638b: Codes and Complete Breakdown
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The Copenhagen Blue color hex code is #21638b, and it is composed of 13% red, 39% green and 55% blue.
Copenhagen Blue is a dark, bright, and cool color at 76% saturation. It has a contrast ratio of 6.52:1 against a white background, which passes WCAG AA (Web Content Accessibility Guidelines, Level AA) compliance.
For better visibility, it is recommended to use the Copenhagen Blue color (#21638b) against light backgrounds.

Copenhagen Blue Color Shades
Complementary colors
Triadic colors
Tints or lighter colors
Darker colors
Analogous colors
Monochromatic colors
#21638b
Copenhagen Blue Color Codes and Information
Here’s a complete breakdown of the color Copenhagen Blue, including its HEX, RGB, HSL, and CMYK values, as well as other information about the color.
| Data Type | Values/Details |
|---|---|
| Hex | #21638b |
| RGB | rgb(33,99,139) |
| HSL | hsl(203,61.6%,33.7%) |
| CMYK | 76, 29, 0, 45 |
| HSV | 203, 76, 55 |
| RGB % | 13, 39, 55 |
| XYZ | 9.7, 11.1, 26.1 |
| LAB | 39.7, -6.6, -28.1 |
| Color Category | Dark |
| Color Family | Blue |
| Saturation | 76% |
| Temperature | Cool |
| Contrast Ratio Againt White (#ffffff) | 6.52 (passes WCAG AA) |
| Contrast Ratio Againt Black (#000000) | 3.22 (fails WCAG AA) |
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#dde0df

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