Cerulean Blue

#1B51CB

General Information about Cerulean Blue

Cerulean Blue, represented by the hexadecimal color code #1B51CB, is a captivating shade of blue often associated with the sky and the sea. Its name, derived from the Latin word 'caeruleus' meaning dark blue or blue-green, reflects its resemblance to the color of a clear sky on a bright day. This color belongs to the blue family, known for its calming and peaceful qualities. In color psychology, blue is often linked to trust, stability, and intelligence. Cerulean Blue, in particular, evokes feelings of serenity, inspiration, and expansiveness. It's a popular choice in art, design, and fashion due to its versatility and ability to create a sense of depth and sophistication. Its unique tone sets it apart from other blues, making it a standout color in various applications.

The hex color #1B51CB, also known as Cerulean Blue, presents specific accessibility considerations for web developers. Its relatively low luminance value (compared to pure white) means that using it as a background color necessitates careful selection of foreground text colors. White or very light shades of yellow or green would provide sufficient contrast to meet WCAG (Web Content Accessibility Guidelines) standards for readability. When used for interactive elements like buttons or links, sufficient contrast is crucial to ensure users can easily identify and interact with them. Additionally, it's important to avoid relying solely on color to convey information; supplementary indicators like text labels or icons can enhance accessibility for users with color vision deficiencies. Thoughtful application of this color, keeping in mind the principles of contrast and redundancy, can result in visually appealing and accessible web designs.

Shades

Digital Color Formats

RGB
27 81 203
RGB27 81 203
Red
Green
Blue
HSL
221.59deg 76.52% 45.1%
221.5976.5245.1HSL
Hue
Saturation
Lightness
HWB
221.59deg 10.59% 20.39%
221.5910.5920.39HWB
Hue
Whiteness
Blackness
hex#1B51CB
rgb27 81 203
hsl221.59deg 76.52% 45.1%
cmyk86.7% 60.1% 0% 20.39%
hwb221.59deg 10.59% 20.39%
xyz-d650.14 0.1 0.58
oklch0.4816 0.1977 263.07
oklab0.4816 -0.02 -0.2
CMYK
86.7% 60.1% 0% 20.39%
86.760.1020.39CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.14 0.1 0.58
0.140.10.58XYZ
X
Y
Z
OKLCH
0.4816 0.1977 263.07
0.48160.1977263.07LCH
Lightness
Chroma
Hue
OKLAB
0.4816 -0.02 -0.2
0.4816-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons