Cerulean Blue

#275BBF

General Information about Cerulean Blue

Cerulean Blue, represented by the hex code #275BBF, is a captivating shade of blue that evokes feelings of tranquility, depth, and sophistication. It is positioned in the cyan-blue region of the color spectrum, carrying a subtle hint of green that distinguishes it from pure blues. In color psychology, blue is often associated with trust, stability, and intelligence, making Cerulean Blue a popular choice for branding in various industries, including technology, finance, and healthcare. Its calming and serene qualities also render it suitable for use in interior design and fashion. The color's versatility allows it to be paired effectively with both warm and cool tones, creating visually appealing contrasts or harmonious blends, depending on the desired effect. The name "Cerulean" originates from the Latin word "caeruleus," meaning "dark blue" or "sky blue."

The hex color #275BBF, Cerulean Blue, presents some accessibility challenges, particularly concerning color contrast. When used as a foreground color for text, it requires careful consideration of the background color to ensure sufficient contrast for readability, especially for users with visual impairments. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Given its medium luminance, #275BBF might not meet these ratios when paired with light backgrounds, necessitating the choice of darker backgrounds to achieve accessibility compliance. Conversely, using it as a background color needs lighter foreground colors to meet the contrast requirements. Testing with accessibility tools is crucial to ensure compliance and optimal readability for all users. Careful attention to color pairings can mitigate these challenges and ensure inclusive design.

Shades

Digital Color Formats

RGB
39 91 191
RGB39 91 191
Red
Green
Blue
HSL
219.47deg 66.09% 45.1%
219.4766.0945.1HSL
Hue
Saturation
Lightness
HWB
219.47deg 15.29% 25.1%
219.4715.2925.1HWB
Hue
Whiteness
Blackness
hex#275BBF
rgb39 91 191
hsl219.47deg 66.09% 45.1%
cmyk79.58% 52.36% 0% 25.1%
hwb219.47deg 15.29% 25.1%
xyz-d650.14 0.12 0.51
oklch0.4954 0.1671 261.79
oklab0.4954 -0.02 -0.17
CMYK
79.58% 52.36% 0% 25.1%
79.5852.36025.1CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.14 0.12 0.51
0.140.120.51XYZ
X
Y
Z
OKLCH
0.4954 0.1671 261.79
0.49540.1671261.79LCH
Lightness
Chroma
Hue
OKLAB
0.4954 -0.02 -0.17
0.4954-0.02-0.17LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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