Cerulean Blue

#284BBF

General Information about Cerulean Blue

Cerulean Blue, represented by the hex code #284BBF, is a medium-dark shade of blue with a moderate saturation. It's located in the blue region of the color spectrum and is often associated with feelings of calmness, stability, and trust. This color is created by mixing specific amounts of red, green, and blue light, where red is at 15.7%, green is at 29.4%, and blue is at 74.9% intensity. In the RGB color model, its values are R:40, G:75, B:191. Cerulean blue has a wavelength of approximately 475 nanometers, positioning it within the visible light spectrum. Its name, 'cerulean,' comes from the Latin word 'caeruleus', meaning dark blue, blue, or sky-blue.

The color #284BBF, a deep cerulean blue, presents some accessibility considerations, especially in web design. When using this color for text, it's crucial to ensure sufficient contrast against the background. Lighter backgrounds, such as white or pale yellow, are generally recommended to meet WCAG (Web Content Accessibility Guidelines) standards for contrast ratio. Using a color contrast checker can help determine if the combination passes accessibility thresholds. For users with visual impairments, low contrast can make content difficult to read. Avoid pairing #284BBF with similarly dark colors, as this exacerbates the issue. Providing alternative color schemes that offer higher contrast options enhances the user experience for everyone. Furthermore, consider providing other cues, such as icons or text styles, to convey information, rather than relying solely on color.

Shades

Digital Color Formats

RGB
40 75 191
RGB40 75 191
Red
Green
Blue
HSL
226.09deg 65.37% 45.29%
226.0965.3745.29HSL
Hue
Saturation
Lightness
HWB
226.09deg 15.69% 25.1%
226.0915.6925.1HWB
Hue
Whiteness
Blackness
hex#284BBF
rgb40 75 191
hsl226.09deg 65.37% 45.29%
cmyk79.06% 60.73% 0% 25.1%
hwb226.09deg 15.69% 25.1%
xyz-d650.13 0.09 0.5
oklch0.4635 0.1863 266.17
oklab0.4635 -0.01 -0.19
CMYK
79.06% 60.73% 0% 25.1%
79.0660.73025.1CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.13 0.09 0.5
0.130.090.5XYZ
X
Y
Z
OKLCH
0.4635 0.1863 266.17
0.46350.1863266.17LCH
Lightness
Chroma
Hue
OKLAB
0.4635 -0.01 -0.19
0.4635-0.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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