Copenhagen Blue Color

#21638b

Copenhagen Blue is calm, cool-toned shade of cool cyan. It is better contrasting with white. This color combines beautifully with warm red, warm green or warm magenta

Inverse Color #de9c74
Complementary Color #8b4820
Color Shade: cool cyan (202.64° hue)
Color Temperature: cool
Lightness: 33.73% (better contrasting with white)
Copenhagen Blue Color Sample
Copenhagen Blue Color Sample

Better Alternatives To #21638b

If you're looking for a similar cool cyan shade, there are some better alternatives to Copenhagen Blue Color. The Prominent Blue color for instance is a lighter and a bit more faded option, however this color has a mid cyan bias. Consider a lighter and more soft alternative called Jelly Bean (#297b9a) for more calm effect. Try Astral as it also a bit more faded and calm.

Complementary Palette

#8b4820 is the best complementary color to Copenhagen Blue. Warm red shades generally complement the cool cyan hues best as they are found on the opposite end of the color wheel. The most popular #21638b complementary color is Bull Shot, as it offers maximum contrast and grab the viewer's attention.

Analogous Palette

The analogous palette of warm cyan, cool cyan, and cool blue colors offers a soft combination of similar cool shades. The analogous colors of Blumine are #208b7d and #202d8b. Thus found on the left and right of #21638b on the color wheel with a 30° gap. Consider matching Elm and Jacksons Purple colors as they work well with Copenhagen Blue.

Split-complementary Palette

The split-complementary Copenhagen Blue palette consists of #8b7d20 and #8b202e colors. They can be found 30° apart on either side of the complementary color (#8b4820). Try Pacifika and Old Brick colors in combination with #21638b, as they are not as contrasting as a complementary color, hence, giving more hue variety to make your design stand out.

Triadic Palette

The triadic palette of #21638b offers a combination of cool yellow and warm magenta shades and equally high contrast between the three of them. Find triadic colors at the 120° distance from the Copenhagen Blue. Thus Olive Drab and Disco giving maximum hue separation to use all three together.

Square Palette

The square color palette of Copenhagen Blue contains three additional colors. Thus, complementary Bull Shot, Seance, and Forest Green split by 90° on the color wheel. #21638b square combo is a palette of cool cyan, cool magenta, warm red and warm green shades that work together well.

Tetradic Palette

The tetradic palette is a bit more complex than the square and has more of a rectangle shape. Copenhagen Blue tetradic combo consists of warm red complementary color (#8b4820) and two others. The Disco is positioned 120° clockwise from the primary color and Eucalyptus – 120° from the complementary Bull Shot. This palette is not recommended to use as-is. Try to tweak the saturation and brightness of #8b2062 and #208b49.

Conversion Table

In a RGB color space, hex #21638b is made of 12% red, 37% green and 51% blue. In a HSL mode Copenhagen Blue has a hue angle of 202.64°, a saturation of 61.63% and a lightness of 33.73%. In a CMYK space (used in printing only), hex #21638b is made of 41.57% cyan, 15.69% magenta, 0% yellow and 45.49% black ink.

HEX #21638b
RGB Decimal rgb(33,99,139)
RGB Percentage 12%, 37%, 51%
CMYK 41.57, 15.69, 0, 45.49
HSL hsl(202.64,61.63%,33.73%)
HSV (or HSB) hsv(202.64,76.26%,54.51%)
CIE-LAB lab(39.767,-6.3219,-28.0203)
XYZ xyz(9.7492,11.1111,26.0569)
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