Cerulean Blue

#2554B1

General Information about Cerulean Blue

Cerulean Blue, represented by the hex code #2554B1, is a medium-dark shade of blue that evokes feelings of calmness, stability, and trustworthiness. It is often associated with the sky and the sea, making it a popular choice for branding and design projects that aim to convey a sense of reliability and tranquility. In the RGB color model, it consists of 14.5% red, 33% green, and 69.4% blue. Its CMYK values are 79% cyan, 52% magenta, 0% yellow, and 31% black. This color is widely used in various applications, from web design and graphic design to fashion and interior decoration, due to its versatility and appealing aesthetic. The name Cerulean is derived from the Latin word 'caeruleus', meaning dark blue.

The hex color #2554B1, also known as Cerulean Blue, presents some accessibility challenges, especially when used as a foreground color on a white or light background. Its luminance is relatively low, resulting in insufficient contrast for users with visual impairments. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. When paired with white, #2554B1 may not meet these requirements, making it difficult for some users to read the content comfortably. To improve accessibility, consider using a lighter shade of blue or a darker background color to enhance contrast. Tools like contrast checkers can help evaluate the contrast ratio and ensure compliance with accessibility standards. Avoid using this color for critical information or interactive elements without adequate contrast.

Shades

Digital Color Formats

RGB
37 84 177
RGB37 84 177
Red
Green
Blue
HSL
219.86deg 65.42% 41.96%
219.8665.4241.96HSL
Hue
Saturation
Lightness
HWB
219.86deg 14.51% 30.59%
219.8614.5130.59HWB
Hue
Whiteness
Blackness
hex#2554B1
rgb37 84 177
hsl219.86deg 65.42% 41.96%
cmyk79.1% 52.54% 0% 30.59%
hwb219.86deg 14.51% 30.59%
xyz-d650.12 0.1 0.43
oklch0.4691 0.1573 262.11
oklab0.4691 -0.02 -0.16
CMYK
79.1% 52.54% 0% 30.59%
79.152.54030.59CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.12 0.1 0.43
0.120.10.43XYZ
X
Y
Z
OKLCH
0.4691 0.1573 262.11
0.46910.1573262.11LCH
Lightness
Chroma
Hue
OKLAB
0.4691 -0.02 -0.16
0.4691-0.02-0.16LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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