Cerulean Blue

#1D4FB9

General Information about Cerulean Blue

Cerulean Blue, represented by the hex code #1D4FB9, is a deep and captivating shade of blue that evokes feelings of tranquility, depth, and sophistication. It's a color often associated with the sea and sky, embodying a sense of vastness and serenity. In the RGB color model, it is composed of 11.4% red, 30.2% green, and 72.5% blue. This specific combination gives it a rich, cool tone. Cerulean blue is frequently used in design and art to convey a sense of peace, stability, and trust. It is versatile and can be used in a variety of applications, from branding to web design to interior decoration. Its CMYK values are 0.84, 0.58, 0.00, 0.27. Cerulean blue is part of the blue color family, a color that is perceived as secure and trustworthy.

The hex color #1D4FB9, also known as Cerulean Blue, presents some accessibility challenges due to its relatively low luminance. When used as a background color, it's crucial to ensure that the text placed on top has sufficient contrast to meet WCAG (Web Content Accessibility Guidelines) standards. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text (14pt bold or 18pt regular) to ensure readability for users with visual impairments. Using tools to check color contrast is highly advisable. Considering its dark hue, lighter text colors like white or very light grays are generally necessary to achieve adequate contrast. It's also important to avoid using this color for crucial interactive elements without careful consideration of the color contrast and providing alternative visual cues, like borders or icons, to support usability for all users.

Shades

Digital Color Formats

RGB
29 79 185
RGB29 79 185
Red
Green
Blue
HSL
220.77deg 72.9% 41.96%
220.7772.941.96HSL
Hue
Saturation
Lightness
HWB
220.77deg 11.37% 27.45%
220.7711.3727.45HWB
Hue
Whiteness
Blackness
hex#1D4FB9
rgb29 79 185
hsl220.77deg 72.9% 41.96%
cmyk84.32% 57.3% 0% 27.45%
hwb220.77deg 11.37% 27.45%
xyz-d650.12 0.09 0.47
oklch0.4626 0.1762 262.65
oklab0.4626 -0.02 -0.17
CMYK
84.32% 57.3% 0% 27.45%
84.3257.3027.45CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.12 0.09 0.47
0.120.090.47XYZ
X
Y
Z
OKLCH
0.4626 0.1762 262.65
0.46260.1762262.65LCH
Lightness
Chroma
Hue
OKLAB
0.4626 -0.02 -0.17
0.4626-0.02-0.17LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons