Cerulean Blue

#1B4EBB

General Information about Cerulean Blue

The hex color #1B4EBB, also known as Cerulean Blue, is a captivating shade that resides within the blue color spectrum. Its RGB (Red, Green, Blue) values are R:27, G:78, B:187, indicating a strong presence of blue with smaller amounts of red and green. This color is often associated with the sky and the sea, evoking feelings of tranquility, peace, and serenity. In color psychology, blue is frequently linked to trust, loyalty, wisdom, confidence, intelligence, faith, truth, and heaven. Cerulean blue, in particular, is often used to represent stability and professionalism, making it a popular choice in various design applications. The color is perceived as reliable and responsible, which makes it very appealing to use for branding.

The hex color #1B4EBB, a shade of Cerulean Blue, presents some accessibility considerations for web design. When using this color for text, it's crucial to ensure sufficient contrast with the background. Given its relatively dark nature, a light background is highly recommended to meet WCAG (Web Content Accessibility Guidelines) standards for readability. A contrast ratio of at least 4.5:1 for normal text and 3:1 for large text is advisable. Tools like WebAIM's Contrast Checker can assist in verifying adequate contrast. Avoid pairing this color with other dark hues, as this can create a low-contrast environment that is difficult for users with visual impairments to read. Use it judiciously for accents or larger elements, always keeping accessibility in mind. Using white (#FFFFFF) or very light grays as background colors provides excellent contrast, while yellows or oranges can provide acceptable contrast if chosen carefully.

Shades

Digital Color Formats

RGB
27 78 187
RGB27 78 187
Red
Green
Blue
HSL
220.88deg 74.77% 41.96%
220.8874.7741.96HSL
Hue
Saturation
Lightness
HWB
220.88deg 10.59% 26.67%
220.8810.5926.67HWB
Hue
Whiteness
Blackness
hex#1B4EBB
rgb27 78 187
hsl220.88deg 74.77% 41.96%
cmyk85.56% 58.29% 0% 26.67%
hwb220.88deg 10.59% 26.67%
xyz-d650.12 0.09 0.48
oklch0.4617 0.1805 262.69
oklab0.4617 -0.02 -0.18
CMYK
85.56% 58.29% 0% 26.67%
85.5658.29026.67CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.12 0.09 0.48
0.120.090.48XYZ
X
Y
Z
OKLCH
0.4617 0.1805 262.69
0.46170.1805262.69LCH
Lightness
Chroma
Hue
OKLAB
0.4617 -0.02 -0.18
0.4617-0.02-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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