Opal is pale, cool-toned shade of warm cyan. It is better contrasting with white. This color combines beautifully with cool red, cool yellow or cool magenta
|Color Shade:||warm cyan (171.72° hue)|
|Lightness:||71.96% (better contrasting with white)|
If you're looking for a similar warm cyan shade, there are some better alternatives to Opal Color. The Shallow Water Ground color for instance is a darker and a bit more faded option, however this color has a green cyan bias. Consider a darker and more saturated alternative called Riverbed (#86bebe) for more energetic effect. Try Oceanus as it also a bit more faded and calm.
#c6a9ac is the best complementary color to Opal. Cool red shades generally complement the warm cyan hues best as they are found on the opposite end of the color wheel. The most popular #a9c6c2 complementary color is Cold Turkey, as it offers maximum contrast and grab the viewer's attention.
The analogous palette of cool green, warm cyan, and cool cyan colors offers a soft combination of similar cool shades. The analogous colors of Opal are #a9c6b3 and #a9bbc6. Thus found on the left and right of #a9c6c2 on the color wheel with a 30° gap. Consider matching Spring Rain and Cadet Blue colors as they work well with Opal.
The split-complementary Opal palette consists of #c6b3a9 and #c6a9bb colors. They can be found 30° apart on either side of the complementary color (#c6a9ac). Try Bison Hide and Lily colors in combination with #a9c6c2, as they are not as contrasting as a complementary color, hence, giving more hue variety to make your design stand out.
The triadic palette of #a9c6c2 offers a combination of warm yellow and cool magenta shades and equally high contrast between the three of them. Find triadic colors at the 120° distance from the Opal. Thus Bison Hide and London Hue giving maximum hue separation to use all three together.
The square color palette of Opal contains three additional colors. Thus, complementary Cold Turkey, Chatelle, and Rainee split by 90° on the color wheel. #a9c6c2 square combo is a palette of warm cyan, warm blue, cool red and cool yellow shades that work together well.
The tetradic palette is a bit more complex than the square and has more of a rectangle shape. Opal tetradic combo consists of cool red complementary color (#c6a9ac) and two others. The London Hue is positioned 120° clockwise from the primary color and Spring Rain – 120° from the complementary Cold Turkey. This palette is not recommended to use as-is. Try to tweak the saturation and brightness of #c2a9c6 and #acc6a9.
In a RGB color space, hex #a9c6c2 is made of 30% red, 35% green and 35% blue. In a HSL mode Opal has a hue angle of 171.72°, a saturation of 20.28% and a lightness of 71.96%. In a CMYK space (used in printing only), hex #a9c6c2 is made of 11.38% cyan, 0% magenta, 1.57% yellow and 22.35% black ink.
|RGB Percentage||30%, 35%, 35%|
|CMYK||11.38, 0, 1.57, 22.35|
|HSV (or HSB)||hsv(171.72,14.65%,77.65%)|