Cerulean Blue

#2B54BB

General Information about Cerulean Blue

Cerulean Blue, represented by the hexadecimal color code #2B54BB, is a medium-dark shade of blue that falls within the azure spectrum. It's a color often associated with serenity, stability, and trust. The name 'Cerulean' is derived from the Latin word 'caeruleus,' meaning 'dark blue,' 'blue-green,' or 'sky-blue.' In the RGB (Red, Green, Blue) color model, #2B54BB is composed of 17.1% red, 32.9% green, and 73.3% blue. In the CMYK (Cyan, Magenta, Yellow, Key/Black) color model, it consists of 76.6% cyan, 55% magenta, 0% yellow, and 26.7% black. This color is widely used in various design applications, including web design, graphic design, and fashion, due to its calming and visually appealing nature. Cerulean Blue is often chosen to represent themes related to water, sky, or technology.

The hex color #2B54BB, also known as Cerulean Blue, presents some accessibility challenges, particularly in text-based applications. Due to its moderate luminance, the contrast ratio against a white background might not meet WCAG (Web Content Accessibility Guidelines) standards for normal text (AA compliance). Therefore, it's crucial to pair this color with lighter text colors such as white (#FFFFFF) or very light grays to ensure readability for users with visual impairments. Using online contrast checkers is highly recommended to verify adequate contrast. In cases where a dark background is preferred, consider using a lighter shade of blue or a complementary color with higher luminance to achieve sufficient contrast. Furthermore, avoid using this color as the sole indicator of interactive elements; always supplement color cues with text labels or icons to ensure usability for colorblind users. Thoughtful consideration of color contrast is essential for creating inclusive and accessible web experiences.

Shades

Digital Color Formats

RGB
43 84 187
RGB43 84 187
Red
Green
Blue
HSL
222.92deg 62.61% 45.1%
222.9262.6145.1HSL
Hue
Saturation
Lightness
HWB
222.92deg 16.86% 26.67%
222.9216.8626.67HWB
Hue
Whiteness
Blackness
hex#2B54BB
rgb43 84 187
hsl222.92deg 62.61% 45.1%
cmyk77.01% 55.08% 0% 26.67%
hwb222.92deg 16.86% 26.67%
xyz-d650.13 0.1 0.48
oklch0.4792 0.1692 264.46
oklab0.4792 -0.02 -0.17
CMYK
77.01% 55.08% 0% 26.67%
77.0155.08026.67CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.13 0.1 0.48
0.130.10.48XYZ
X
Y
Z
OKLCH
0.4792 0.1692 264.46
0.47920.1692264.46LCH
Lightness
Chroma
Hue
OKLAB
0.4792 -0.02 -0.17
0.4792-0.02-0.17LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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