Cerulean Blue

#284FB3

General Information about Cerulean Blue

Cerulean Blue, represented by the hexadecimal color code #284FB3, is a captivating shade of blue often associated with serenity, depth, and intellect. It is a medium-dark hue, blending the calmness of blue with a touch of vibrancy. In the RGB color model, it consists of 16.1% red, 31% green, and 70.2% blue. This color finds applications in various design fields, from web development to interior decor, owing to its pleasing aesthetics and versatile nature. Cerulean Blue evokes feelings of tranquility and trustworthiness, making it a popular choice for brands aiming to project a sense of stability and reliability. Its name is derived from the Latin word "caeruleus", meaning dark blue, sky blue or blue-green.

The color #284FB3, Cerulean Blue, offers moderate accessibility. When used as text on a white background, the contrast ratio is approximately 3.3:1, which is below the WCAG recommended minimum of 4.5:1 for normal text and 3:1 for large text. Therefore, it's advisable to use a lighter text color such as white (#FFFFFF) on a Cerulean Blue background to achieve sufficient contrast for readability. Alternatively, consider using a darker shade for text on a Cerulean Blue background to ensure better accessibility for users with visual impairments. To enhance accessibility further, ensure that interactive elements using this color have clear visual cues and keyboard focus indicators. Providing alternative text descriptions for images using this color also improves accessibility for screen reader users.

Shades

Digital Color Formats

RGB
40 79 179
RGB40 79 179
Red
Green
Blue
HSL
223.17deg 63.47% 42.94%
223.1763.4742.94HSL
Hue
Saturation
Lightness
HWB
223.17deg 15.69% 29.8%
223.1715.6929.8HWB
Hue
Whiteness
Blackness
hex#284FB3
rgb40 79 179
hsl223.17deg 63.47% 42.94%
cmyk77.65% 55.87% 0% 29.8%
hwb223.17deg 15.69% 29.8%
xyz-d650.12 0.09 0.44
oklch0.4613 0.1654 264.59
oklab0.4613 -0.02 -0.16
CMYK
77.65% 55.87% 0% 29.8%
77.6555.87029.8CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.12 0.09 0.44
0.120.090.44XYZ
X
Y
Z
OKLCH
0.4613 0.1654 264.59
0.46130.1654264.59LCH
Lightness
Chroma
Hue
OKLAB
0.4613 -0.02 -0.16
0.4613-0.02-0.16LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons