Cerulean Blue

#1B4BBB

General Information about Cerulean Blue

The hexadecimal color code #1B4BBB, also known as Cerulean Blue, is a blend of blue and cyan hues, residing within the broader blue spectrum. It is defined by 10.6% red, 29.8% green, and 73.3% blue. This color is often associated with traits such as calmness, stability, and depth. It can evoke feelings of serenity and trust, making it a popular choice for various applications. In design, #1B4BBB can be effectively used to create a sense of professionalism and reliability. It is widely employed in corporate branding, website design, and even interior decor to establish a particular mood and convey specific messages, adding a touch of sophistication and depth.

The hex color #1B4BBB, a shade of Cerulean Blue, presents some accessibility considerations for web developers. When used as a background color, it's crucial to ensure sufficient contrast with the foreground text to meet WCAG guidelines. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Given its relatively dark nature, lighter text colors like white or light gray would be appropriate choices. Additionally, avoid using this color as the sole indicator for interactive elements; supplement it with text labels, icons, or other visual cues. Consider users with color vision deficiencies by providing alternative styling options or ensuring that critical information isn't conveyed solely through color. Thorough testing with accessibility tools and user feedback will help ensure an inclusive user experience.

Shades

Digital Color Formats

RGB
27 75 187
RGB27 75 187
Red
Green
Blue
HSL
222deg 74.77% 41.96%
22274.7741.96HSL
Hue
Saturation
Lightness
HWB
222deg 10.59% 26.67%
22210.5926.67HWB
Hue
Whiteness
Blackness
hex#1B4BBB
rgb27 75 187
hsl222deg 74.77% 41.96%
cmyk85.56% 59.89% 0% 26.67%
hwb222deg 10.59% 26.67%
xyz-d650.12 0.09 0.48
oklch0.4557 0.1841 263.35
oklab0.4557 -0.02 -0.18
CMYK
85.56% 59.89% 0% 26.67%
85.5659.89026.67CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.12 0.09 0.48
0.120.090.48XYZ
X
Y
Z
OKLCH
0.4557 0.1841 263.35
0.45570.1841263.35LCH
Lightness
Chroma
Hue
OKLAB
0.4557 -0.02 -0.18
0.4557-0.02-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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