Coastal Blue has the hex code #55A9DC. The equivalent RGB values are (85, 169, 220), which means it is composed of
18% red, 36% green and 46% blue. The CMYK color codes, used in printers, are C:61 M:23 Y:0 K:14. In the HSV/HSB scale, Coastal Blue has a hue of 203°, 61% saturation and a brightness value of 86%. Details of other color codes including equivalent web safe and HTML & CSS colors are given in the table below. Also listed are the closest Pantone® (PMS) and RAL colors.
Coastal Blue is not part of the web colors list and, therefore, cannot be used by name in HTML and CSS code. The best way to apply the color to a web page is to put in its hex, RGB or HSL values. Please also note that the Coastal Blue CMYK numbers mentioned on this page are only approximations and have been calculated from the hex code using well-known formulae.
The complement of Coastal Blue is Raw Sienna with the hex code #DC8855. Complementary colors are those found at the opposite ends of the color wheel. Thus, as per the RGB system, the best contrast to #55A9DC color is offered by #DC8855. The complementary color palette is easiest to use and work with. Studies have shown that contrasting color palette is the best way to grab a viewer's attention.
The analogous colors of Coastal Blue (#55A9DC) are Royal Blue (#5566DC) and Medium Turquoise (#55DCCC). In the RGB color wheel, these two analogous colors occur to the right and left of Coastal Blue with a 30° separation on either side. An analogous color palette is extremely soothing to the eyes and works wonders if your main color is soft or pastel.
As per the RGB color wheel, the split-complementary colors of Coastal Blue (#55A9DC) are #DC5566 (Indian Red) and #DCCC55 (Chinese Green). A split-complementary color palette consists of the main color along with those on either side (30°) of the complementary color. Based on our research, usage of split-complementary palettes is on the rise online, especially in graphics and web sites designs. It may be because it is not as contrasting as the complementary color palette and, hence, results in a combination which is pleasant to the eyes.
Coastal Blue triadic color palette has three colors each of which is separated by 120° in the RGB wheel. Thus, #DC55A9 (Raspberry Pink) and #A9DC55 (Inchworm) along with #55A9DC create a stunning and beautiful triadic palette with the maximum variation in hue and, therefore, offering the best possible contrast when taken together.
The tetradic palette of Coastal Blue has four colors - #DC55A9 (Raspberry Pink), #DC8855 (Raw Sienna) and #55DC88 (Very Light Malachite Green) in addition to the base color (#55A9DC). A tetradic color palette is complex and, in most cases, should not be used off-the-shelf. We suggest tweaking the colors slightly to achieve desired results.
Coastal Blue square color palette has #CC55DC (Medium Orchid), #DC8855 (Raw Sienna) and #66DC55 (Mantis). Quite like triadic, the hues in a square palette are at the maximum distance from each other, which is 90°. Note: For several colors purposes, a square palette may look much better than the tetrad color palette.
Coastal Blue Color Rainbow Palette
Our Coastal Blue rainbow color palette is based on the RGB model and consists of 7 colors, just like the traditional rainbow. You might not see a lot of variation in color, especially if the chosen color is dark or extremely light. However, this can lead interesting rainbow palettes that are faded, soft, pastel or dull.