Cerulean Blue

#2551C1

General Information about Cerulean Blue

The hexadecimal color #2551C1, also known as Cerulean Blue, is a vibrant and captivating shade within the blue color family. It is defined by a combination of red, green, and blue light, with specific intensities that result in its unique appearance. Hex color codes are commonly used in web design and graphic design to precisely define colors in a digital format. Cerulean Blue evokes feelings of calmness, stability, and trust, making it a popular choice for various applications, from branding and marketing materials to website design and even interior decor. Its association with the sky and ocean contributes to its serene and approachable nature. In color psychology, blue is often linked to intellect, communication, and efficiency.

The hex color #2551C1, a shade of Cerulean Blue, presents some accessibility challenges. Its luminance value is relatively low, which means it may not provide sufficient contrast when used as text against a white background. According to WCAG guidelines, the contrast ratio should be at least 4.5:1 for normal text and 3:1 for large text to meet AA compliance. When using this color for text, it's crucial to pair it with a very light or white background to ensure readability. For decorative elements or larger graphical components, the contrast requirements are less stringent, but designers should still strive for adequate contrast to accommodate users with visual impairments. Tools like contrast checkers can help determine if the color combination meets accessibility standards. Consider also providing alternative color schemes for users with specific visual needs.

Shades

Digital Color Formats

RGB
37 81 193
RGB37 81 193
Red
Green
Blue
HSL
223.08deg 67.83% 45.1%
223.0867.8345.1HSL
Hue
Saturation
Lightness
HWB
223.08deg 14.51% 24.31%
223.0814.5124.31HWB
Hue
Whiteness
Blackness
hex#2551C1
rgb37 81 193
hsl223.08deg 67.83% 45.1%
cmyk80.83% 58.03% 0% 24.31%
hwb223.08deg 14.51% 24.31%
xyz-d650.13 0.1 0.52
oklch0.4759 0.1825 264.25
oklab0.4759 -0.02 -0.18
CMYK
80.83% 58.03% 0% 24.31%
80.8358.03024.31CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.13 0.1 0.52
0.130.10.52XYZ
X
Y
Z
OKLCH
0.4759 0.1825 264.25
0.47590.1825264.25LCH
Lightness
Chroma
Hue
OKLAB
0.4759 -0.02 -0.18
0.4759-0.02-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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