Cerulean Blue

#2556C1

About Cerulean Blue

Cerulean Blue, represented by the hex code #2556C1, is a captivating shade of blue that evokes feelings of calmness, serenity, and openness. It sits between azure and sky blue on the color spectrum, possessing a slightly deeper and more saturated tone. The name "Cerulean" is derived from the Latin word "caeruleus," meaning "dark blue" or "sky blue." This color is often associated with clear skies, tranquil waters, and a sense of peacefulness. In color psychology, blue is known to promote feelings of trust, stability, and intelligence, making Cerulean Blue a popular choice for branding and design elements where these qualities are desired. Its unique character makes it versatile and impactful in different applications.

The hex color #2556C1, also known as Cerulean Blue, presents some accessibility challenges, particularly for users with visual impairments. Its luminance value is relatively low, meaning that text rendered in this color may be difficult to read against a white or light-colored background. According to WCAG guidelines, sufficient contrast between text and background is essential for readability. To improve accessibility, consider using a lighter shade of blue or pairing #2556C1 with a high-contrast background color such as white or a very light yellow. Additionally, avoid using this color as the sole indicator of important information, as colorblind users may not be able to distinguish it. Supplement color with text labels or icons to ensure information is accessible to all users.

Shades

Digital Color Formats

RGB
37 86 193
RGB37 86 193
Red
Green
Blue
HSL
221.15deg 67.83% 45.1%
221.1567.8345.1HSL
Hue
Saturation
Lightness
HWB
221.15deg 14.51% 24.31%
221.1514.5124.31HWB
Hue
Whiteness
Blackness
hex#2556C1
rgb37 86 193
hsl221.15deg 67.83% 45.1%
cmyk80.83% 55.44% 0% 24.31%
hwb221.15deg 14.51% 24.31%
xyz-d650.14 0.11 0.52
oklch0.4859 0.1764 263
oklab0.4859 -0.02 -0.18
CMYK
80.83% 55.44% 0% 24.31%
80.8355.44024.31CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.14 0.11 0.52
0.140.110.52XYZ
X
Y
Z
OKLCH
0.4859 0.1764 263
0.48590.1764263LCH
Lightness
Chroma
Hue
OKLAB
0.4859 -0.02 -0.18
0.4859-0.02-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons