Cerulean Blue has the hex code #2A52BE. The equivalent RGB values are (42, 82, 190), which means it is composed of
13% red, 26% green and 61% blue. The CMYK color codes, used in printers, are C:78 M:57 Y:0 K:26. In the HSV/HSB scale, Cerulean Blue has a hue of 224°, 78% saturation and a brightness value of 75%. 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.
Discovered in 1789 by Albrecht Höpfner, a Swiss chemist, Cerulean blue is an expensive pigment which is now replaced by cobalt chromate. The color is not included in the web colors list and cannot be used by name in HTML and CSS code. However, cerulean blue can be applied to web pages with its hex code, RGB and/or HSL values. Please note that the CMYK numbers listed on this page have been derived from the hexadecimal code using known formulae and are only approximates.
The complement of Cerulean Blue is University Of California Gold with the hex code #BE962A. Complementary colors are those found at the opposite ends of the color wheel. Thus, as per the RGB system, the best contrast to #2A52BE color is offered by #BE962A. 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 Cerulean Blue (#2A52BE) are Ocean Blue (#4C2ABE) and Moonstone (#2A9CBE). In the RGB color wheel, these two analogous colors occur to the right and left of Cerulean 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 Cerulean Blue (#2A52BE) are #BE4C2A (Dark Pastel Red) and #9CBE2A (Yellow-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.
Cerulean Blue triadic color palette has three colors each of which is separated by 120° in the RGB wheel. Thus, #BE2A52 (Dingy Dungeon) and #52BE2A (Kelly Green) along with #2A52BE 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 Cerulean Blue has four colors - #BE2A52 (Dingy Dungeon), #BE962A (University Of California Gold) and #2ABE96 (Mountain Meadow) in addition to the base color (#2A52BE). 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.
Cerulean Blue square color palette has #BE2A9C (Byzantine), #BE962A (University Of California Gold) and #2ABE4C (American Green). 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.
Cerulean Blue Color Rainbow Palette
Our Cerulean 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.