Cerulean Blue

#2748BF

General Information about Cerulean Blue

Cerulean Blue, represented by the hexadecimal color code #2748BF, is a captivating shade of blue that evokes feelings of tranquility and clarity. It sits between azure and sky blue on the color spectrum, embodying a blend of serenity and vibrancy. Historically, the term 'cerulean' is derived from the Latin word 'caeruleus,' meaning 'dark blue' or 'sky-blue.' This color is often associated with the sky and the sea, imparting a sense of openness and calmness. In color psychology, blue is often linked to trust, stability, and wisdom, making Cerulean Blue a popular choice for branding and design across various industries. It has a significant presence in art history as well.

The hex color #2748bf, Cerulean Blue, presents specific accessibility considerations for web developers. With a relatively low luminance, it's crucial to ensure sufficient contrast when used as either a background or text color. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text against its background. Using a color contrast checker is highly advisable to verify compliance. When using #2748bf for text, pairing it with a light color such as white (#ffffff) or a pale yellow can improve readability. Conversely, using it as a background requires light-colored text for optimal contrast. Additionally, consider providing alternative visual cues, such as underlines or icons, for links and interactive elements using this color, especially for users with color vision deficiencies.

Shades

Digital Color Formats

RGB
39 72 191
RGB39 72 191
Red
Green
Blue
HSL
226.97deg 66.09% 45.1%
226.9766.0945.1HSL
Hue
Saturation
Lightness
HWB
226.97deg 15.29% 25.1%
226.9715.2925.1HWB
Hue
Whiteness
Blackness
hex#2748BF
rgb39 72 191
hsl226.97deg 66.09% 45.1%
cmyk79.58% 62.3% 0% 25.1%
hwb226.97deg 15.29% 25.1%
xyz-d650.13 0.09 0.5
oklch0.4575 0.1902 266.54
oklab0.4575 -0.01 -0.19
CMYK
79.58% 62.3% 0% 25.1%
79.5862.3025.1CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.13 0.09 0.5
0.130.090.5XYZ
X
Y
Z
OKLCH
0.4575 0.1902 266.54
0.45750.1902266.54LCH
Lightness
Chroma
Hue
OKLAB
0.4575 -0.01 -0.19
0.4575-0.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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