Cerulean Blue

#1E55C8

About Cerulean Blue

The hexadecimal color code #1E55C8 represents a shade of blue known as Cerulean Blue. It is composed of 11.8% red, 33.33% green, and 78.43% blue. In the RGB color model, this translates to 30 red, 85 green, and 200 blue. Cerulean Blue is often associated with feelings of calmness, serenity, and stability. It is a popular color choice in design, frequently used to evoke trust and reliability. Understanding the properties of this color, including its RGB composition and associated psychological effects, can help designers make informed decisions about its application in various projects.

The hex color #1E55C8, also known as Cerulean Blue, presents some accessibility challenges, particularly for text-based content. Its relatively low luminance can result in insufficient contrast against light backgrounds, making it difficult for users with visual impairments to read. When using this color for text, it's crucial to pair it with a very light color such as white (#FFFFFF) or a very pale yellow. Tools like the WebAIM contrast checker are invaluable for ensuring sufficient contrast ratios, meeting WCAG guidelines for accessibility. In user interface design, consider using this color strategically for non-essential elements, or areas where legibility is less critical. Furthermore, provide alternative visual cues, such as icons or labels, to support understanding for users who may have difficulty distinguishing the color. Thoughtful application of this color, combined with careful attention to contrast, can help mitigate accessibility concerns.

Shades

Digital Color Formats

RGB
30 85 200
RGB30 85 200
Red
Green
Blue
HSL
220.59deg 73.91% 45.1%
220.5973.9145.1HSL
Hue
Saturation
Lightness
HWB
220.59deg 11.76% 21.57%
220.5911.7621.57HWB
Hue
Whiteness
Blackness
hex#1E55C8
rgb30 85 200
hsl220.59deg 73.91% 45.1%
cmyk85% 57.5% 0% 21.57%
hwb220.59deg 11.76% 21.57%
xyz-d650.14 0.11 0.56
oklch0.4876 0.1884 262.51
oklab0.4876 -0.02 -0.19
CMYK
85% 57.5% 0% 21.57%
8557.5021.57CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.14 0.11 0.56
0.140.110.56XYZ
X
Y
Z
OKLCH
0.4876 0.1884 262.51
0.48760.1884262.51LCH
Lightness
Chroma
Hue
OKLAB
0.4876 -0.02 -0.19
0.4876-0.02-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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