Cerulean Blue

#2B4ABB

General Information about Cerulean Blue

Cerulean Blue, represented by the hex code #2B4ABB, is a medium-dark shade of blue known for its calming and sophisticated appearance. It evokes feelings of tranquility, serenity, and stability. In the RGB color model, it is composed of 17.1% red, 28.6% green, and 73.3% blue. This color is often associated with the sky and sea, making it a popular choice for designs that aim to create a sense of peace and openness. Cerulean Blue is versatile and can be used in various applications, including web design, graphic design, and interior decoration. Its balanced hue allows it to pair well with both warm and cool colors, providing designers with flexibility in creating visually appealing compositions. The name 'Cerulean' itself is derived from the Latin word 'caeruleus', which means 'sky blue' or 'dark blue'.

The color #2B4ABB, also known as Cerulean Blue, presents some accessibility challenges, especially concerning color contrast. When used as text on a white background, the contrast ratio might not meet WCAG (Web Content Accessibility Guidelines) standards for Level AA compliance, which requires a contrast ratio of at least 4.5:1 for normal text. This could make it difficult for users with visual impairments to read the content. Therefore, it is crucial to pair Cerulean Blue with a very light color or white as a background or a very dark color as text to ensure readability. For example, consider using a light yellow or off-white as the background color or using black or a dark grey as the text color. Additionally, providing alternative cues like underlining links or using icons alongside text can further enhance accessibility for all users.

Shades

Digital Color Formats

RGB
43 74 187
RGB43 74 187
Red
Green
Blue
HSL
227.08deg 62.61% 45.1%
227.0862.6145.1HSL
Hue
Saturation
Lightness
HWB
227.08deg 16.86% 26.67%
227.0816.8626.67HWB
Hue
Whiteness
Blackness
hex#2B4ABB
rgb43 74 187
hsl227.08deg 62.61% 45.1%
cmyk77.01% 60.43% 0% 26.67%
hwb227.08deg 16.86% 26.67%
xyz-d650.12 0.09 0.48
oklch0.4594 0.1815 267.02
oklab0.4594 -0.01 -0.18
CMYK
77.01% 60.43% 0% 26.67%
77.0160.43026.67CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.12 0.09 0.48
0.120.090.48XYZ
X
Y
Z
OKLCH
0.4594 0.1815 267.02
0.45940.1815267.02LCH
Lightness
Chroma
Hue
OKLAB
0.4594 -0.01 -0.18
0.4594-0.01-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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