Cerulean Blue

#2150B5

General Information

Cerulean Blue, represented by the hex code #2150B5, is a captivating shade of blue that evokes a sense of tranquility and depth. It sits within the blue color spectrum, exhibiting a moderate saturation and a noticeable luminance value. This color is often associated with the sky and sea, conveying feelings of calmness, stability, and inspiration. Its use in design and art can lend a sense of sophistication and trustworthiness. Cerulean Blue derives its name from cerulean, a mineral pigment consisting primarily of cobalt(II) stannate. It is a popular choice in various applications, including graphic design, web development, fashion, and interior design, owing to its versatility and aesthetic appeal.

The hex color #2150B5, also known as Cerulean Blue, presents some accessibility considerations for web developers. Its relatively low luminance value means that using it as a background color requires careful attention to text contrast. To ensure readability and accessibility for users with visual impairments, it is crucial to use light-colored text on a #2150B5 background. Following WCAG guidelines for color contrast ratios is highly recommended. A contrast ratio of at least 4.5:1 for normal text and 3:1 for large text is necessary. When using this color for interactive elements like buttons or links, provide additional cues such as underlines or icons to enhance usability for users who may have difficulty distinguishing colors. Testing the color combination with accessibility tools is also a good practice.

Shades

Digital Color Formats

RGB
33 80 181
RGB33 80 181
Red
Green
Blue
HSL
220.95deg 69.16% 41.96%
220.9569.1641.96HSL
Hue
Saturation
Lightness
HWB
220.95deg 12.94% 29.02%
220.9512.9429.02HWB
Hue
Whiteness
Blackness
hex#2150B5
rgb33 80 181
hsl220.95deg 69.16% 41.96%
cmyk81.77% 55.8% 0% 29.02%
hwb220.95deg 12.94% 29.02%
xyz-d650.12 0.09 0.45
oklch0.4625 0.1687 262.84
oklab0.4625 -0.02 -0.17
CMYK
81.77% 55.8% 0% 29.02%
81.7755.8029.02CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.12 0.09 0.45
0.120.090.45XYZ
X
Y
Z
OKLCH
0.4625 0.1687 262.84
0.46250.1687262.84LCH
Lightness
Chroma
Hue
OKLAB
0.4625 -0.02 -0.17
0.4625-0.02-0.17LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons