North Star Blue Color


North Star Blue is deep, cool-toned shade of cool blue. It is better contrasting with white. This color combines beautifully with warm yellow, cool green or cool red

Inverse Color #dc6
Complementary Color #998821
Color Shade: cool blue (231.43° hue)
Color Temperature: cool
Lightness: 36.67% (better contrasting with white)
North Star Blue Color Sample
North Star Blue Color Sample

Better Alternatives To #223399

If you're looking for a similar cool blue shade, there are some better alternatives to North Star Blue Color. The Blue Blue color for instance is a lighter and a bit more vibrant option, however this color has a blue cyan bias. Consider a lighter and more soft alternative called Night in Manchester (#324ab2) for more calm effect. Try 20000 Leagues Under the Sea as it also a bit more faded and calm.

Complementary Palette

#998821 is the best complementary color to North Star Blue. Warm yellow shades generally complement the cool blue hues best as they are found on the opposite end of the color wheel. The most popular #239 complementary color is Reef Gold, as it offers maximum contrast and grab the viewer's attention.

Analogous Palette

The analogous palette of cool cyan, cool blue, and warm blue colors offers a soft combination of similar cool shades. The analogous colors of White are #216e99 and #4c2199. Thus found on the left and right of #239 on the color wheel with a 30° gap. Consider matching Matisse and Daisy Bush colors as they work well with North Star Blue.

Split-complementary Palette

The split-complementary North Star Blue palette consists of #6e9921 and #994c21 colors. They can be found 30° apart on either side of the complementary color (#998821). Try Olive Drab and Cumin colors in combination with #239, 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 #239 offers a combination of warm green and cool red shades and equally high contrast between the three of them. Find triadic colors at the 120° distance from the North Star Blue. Thus Forest Green and Mexican Red giving maximum hue separation to use all three together.

Square Palette

The square color palette of North Star Blue contains three additional colors. Thus, complementary Reef Gold, Disco, and Eucalyptus split by 90° on the color wheel. #239 square combo is a palette of cool blue, warm magenta, warm yellow and cool 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. North Star Blue tetradic combo consists of warm yellow complementary color (#998821) and two others. The Mexican Red is positioned 120° clockwise from the primary color and Jungle Green – 120° from the complementary Reef Gold. This palette is not recommended to use as-is. Try to tweak the saturation and brightness of #992132 and #219988.

Conversion Table

In a RGB color space, hex #223399 is made of 14% red, 21% green and 64% blue. In a HSL mode North Star Blue has a hue angle of 231.43°, a saturation of 63.64% and a lightness of 36.67%. In a CMYK space (used in printing only), hex #223399 is made of 46.67% cyan, 40% magenta, 0% yellow and 40% black ink.

HEX #223399
RGB Decimal rgb(34,51,153)
RGB Percentage 14%, 21%, 64%
CMYK 46.67, 40, 0, 40
HSL hsl(231.43,63.64%,36.67%)
HSV (or HSB) hsv(231.43,77.78%,60%)
CIE-LAB lab(26.7565,31.0491,-57.4329)
XYZ xyz(7.5933,5.0076,30.7034)