Cerulean Blue

#1C4CBA

General Information about #1C4CBA

The hexadecimal color #1C4CBA, also known as Cerulean Blue, is a vibrant and deep shade of blue. In the RGB color model, it consists of 11.0% red, 29.8% green, and 72.9% blue. This color is often associated with feelings of serenity, stability, and trust, making it a popular choice for branding and visual design in various industries. Cerulean Blue's specific wavelength positioning within the visible light spectrum gives it a calming, yet authoritative presence, setting it apart from lighter and more playful blues. Its balanced composition creates a visually appealing hue that can be both eye-catching and soothing. Because of the color's richness and saturation, it works very well as an accent to more neutral colors and can be used to highlight features of a user interface.

The color #1C4CBA, a deep cerulean blue, presents certain accessibility considerations for web design. Its relatively low lightness value (around 20%) means it requires careful pairing with text and background colors to ensure sufficient contrast. 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 using #1C4CBA as a background, light text colors like white (#FFFFFF) or very pale yellow should be used to meet these contrast requirements. Similarly, if #1C4CBA is used for text, the background should be a very light color to ensure readability. Using contrast checking tools is crucial to verify compliance and guarantee that content is accessible to users with visual impairments. For users with color blindness, using this color to communicate critical information can be problematic. Always provide alternative cues, such as text labels or icons, to convey information effectively, and test the design using color blindness simulators.

Shades

Digital Color Formats

RGB
28 76 186
RGB28 76 186
Red
Green
Blue
HSL
221.77deg 73.83% 41.96%
221.7773.8341.96HSL
Hue
Saturation
Lightness
HWB
221.77deg 10.98% 27.06%
221.7710.9827.06HWB
Hue
Whiteness
Blackness
hex#1C4CBA
rgb28 76 186
hsl221.77deg 73.83% 41.96%
cmyk84.95% 59.14% 0% 27.06%
hwb221.77deg 10.98% 27.06%
xyz-d650.12 0.09 0.48
oklch0.4571 0.1814 263.25
oklab0.4571 -0.02 -0.18
CMYK
84.95% 59.14% 0% 27.06%
84.9559.14027.06CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.12 0.09 0.48
0.120.090.48XYZ
X
Y
Z
OKLCH
0.4571 0.1814 263.25
0.45710.1814263.25LCH
Lightness
Chroma
Hue
OKLAB
0.4571 -0.02 -0.18
0.4571-0.02-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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