Cerulean Blue

#1D51B9

General Information about Cerulean Blue

The hex color #1D51B9, commonly known as Cerulean Blue, is a deep and captivating shade of blue. In the RGB color model, it is composed of 11.4% red, 31.8% green, and 72.5% blue. It belongs to the blue color family, conveying a sense of calmness, stability, and trust. Cerulean Blue is often associated with the sky and the sea, evoking feelings of serenity and peace. This color is a popular choice for branding, web design, and various artistic applications where a cool and reliable aesthetic is desired. Its unique blend of primary colors gives it a distinctive appearance, making it a versatile option for a wide range of design projects.

The hex color #1D51B9, also known as Cerulean Blue, presents some accessibility considerations for web developers. Its relatively dark hue results in a moderate contrast ratio against a white background, which may be sufficient for larger text or non-essential UI elements. However, for body text or critical interactive components, it's crucial to ensure a contrast ratio that meets WCAG (Web Content Accessibility Guidelines) standards (minimum 4.5:1 for normal text and 3:1 for large text). When using this color, carefully evaluate the contrast with the background and foreground colors, considering users with visual impairments. If the contrast is insufficient, consider using a lighter shade of yellow, orange, or green for the foreground text, or darken the background behind #1D51B9. Also, ensure that color isn't the only means of conveying information; use text labels, icons, or other visual cues to provide redundancy.

Shades

Digital Color Formats

RGB
29 81 185
RGB29 81 185
Red
Green
Blue
HSL
220deg 72.9% 41.96%
22072.941.96HSL
Hue
Saturation
Lightness
HWB
220deg 11.37% 27.45%
22011.3727.45HWB
Hue
Whiteness
Blackness
hex#1D51B9
rgb29 81 185
hsl220deg 72.9% 41.96%
cmyk84.32% 56.22% 0% 27.45%
hwb220deg 11.37% 27.45%
xyz-d650.12 0.1 0.47
oklch0.4667 0.1737 262.14
oklab0.4667 -0.02 -0.17
CMYK
84.32% 56.22% 0% 27.45%
84.3256.22027.45CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.12 0.1 0.47
0.120.10.47XYZ
X
Y
Z
OKLCH
0.4667 0.1737 262.14
0.46670.1737262.14LCH
Lightness
Chroma
Hue
OKLAB
0.4667 -0.02 -0.17
0.4667-0.02-0.17LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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