Cerulean Blue

#2B4BBB

General Information about Cerulean Blue

Cerulean Blue, represented by the hexadecimal color code #2B4BBB, is a captivating shade of blue that sits between cyan and azure on the color spectrum. It is a tertiary color, a blend of primary blue and secondary green. The name 'Cerulean' is derived from the Latin word 'caeruleus', meaning 'dark blue' or 'sky blue', referencing the clear blue sky. This color evokes feelings of serenity, calmness, and peace. In color psychology, blue is often associated with trust, loyalty, and intelligence. Cerulean Blue is frequently used in design and art to create a sense of stability and reliability. Its balanced hue makes it a versatile choice for various applications, from branding to interior design. Cerulean Blue is commonly known as a pastel color.

The hex color #2B4BBB, also known as Cerulean Blue, presents some accessibility challenges, particularly regarding color contrast. When using this color for text or interactive elements, it is crucial to ensure sufficient contrast against the background. According to WCAG guidelines, the contrast ratio between text and background should be at least 4.5:1 for normal text and 3:1 for large text (14pt bold or 18pt regular). Given Cerulean Blue's relatively dark nature, it is advisable to pair it with light colors like white (#FFFFFF) or very pale yellow to meet these contrast requirements. Tools like WebAIM's contrast checker can be used to verify compliance. Failure to meet these guidelines can make content difficult or impossible to read for users with visual impairments. Also, avoid using #2B4BBB as the sole indicator for important actions or information, as colorblind users may not be able to distinguish it. Consider adding secondary indicators, such as text labels or icons.

Shades

Digital Color Formats

RGB
43 75 187
RGB43 75 187
Red
Green
Blue
HSL
226.67deg 62.61% 45.1%
226.6762.6145.1HSL
Hue
Saturation
Lightness
HWB
226.67deg 16.86% 26.67%
226.6716.8626.67HWB
Hue
Whiteness
Blackness
hex#2B4BBB
rgb43 75 187
hsl226.67deg 62.61% 45.1%
cmyk77.01% 59.89% 0% 26.67%
hwb226.67deg 16.86% 26.67%
xyz-d650.12 0.09 0.48
oklch0.4613 0.1803 266.79
oklab0.4613 -0.01 -0.18
CMYK
77.01% 59.89% 0% 26.67%
77.0159.89026.67CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.12 0.09 0.48
0.120.090.48XYZ
X
Y
Z
OKLCH
0.4613 0.1803 266.79
0.46130.1803266.79LCH
Lightness
Chroma
Hue
OKLAB
0.4613 -0.01 -0.18
0.4613-0.01-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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