Cerulean Blue

#2B56BB

General Information about Cerulean Blue

Cerulean Blue, represented by the hexadecimal color code #2B56BB, is a distinct shade of blue that falls within the cyan-blue spectral range. It is characterized by its moderate saturation and medium luminance, giving it a balanced and visually appealing appearance. The name 'Cerulean' is derived from the Latin word 'caeruleus,' meaning 'dark blue' or 'sky blue,' reflecting its resemblance to the color of a clear sky. This color is often associated with tranquility, calmness, and stability, making it a popular choice in various design applications. In the RGB color model, Cerulean Blue is composed of 17.1% red, 33.7% green, and 73.3% blue. Its CMYK values are 76.6% cyan, 54% magenta, 0% yellow, and 26.7% black. The color #2B56BB finds common use in web design, graphic arts, and branding, where its versatile nature can convey a sense of trust, reliability, and sophistication.

The hex color #2B56BB, also known as Cerulean Blue, presents moderate accessibility challenges. Its luminance value is relatively low, which means text rendered in white or very light colors on this background will generally have good contrast. However, using darker shades for text on a Cerulean Blue background may result in insufficient contrast, making it difficult for users, especially those with visual impairments, to read the content comfortably. To ensure optimal accessibility, web developers should adhere to WCAG guidelines, aiming for a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Tools like contrast checkers can help verify compliance. Additionally, providing alternative color schemes or allowing users to customize the color palette enhances the user experience for individuals with specific visual needs. Using Cerulean Blue for purely decorative elements minimizes accessibility concerns compared to using it for essential text or interactive components.

Shades

Digital Color Formats

RGB
43 86 187
RGB43 86 187
Red
Green
Blue
HSL
222.08deg 62.61% 45.1%
222.0862.6145.1HSL
Hue
Saturation
Lightness
HWB
222.08deg 16.86% 26.67%
222.0816.8626.67HWB
Hue
Whiteness
Blackness
hex#2B56BB
rgb43 86 187
hsl222.08deg 62.61% 45.1%
cmyk77.01% 54.01% 0% 26.67%
hwb222.08deg 16.86% 26.67%
xyz-d650.13 0.11 0.48
oklch0.4833 0.1668 263.86
oklab0.4833 -0.02 -0.17
CMYK
77.01% 54.01% 0% 26.67%
77.0154.01026.67CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.13 0.11 0.48
0.130.110.48XYZ
X
Y
Z
OKLCH
0.4833 0.1668 263.86
0.48330.1668263.86LCH
Lightness
Chroma
Hue
OKLAB
0.4833 -0.02 -0.17
0.4833-0.02-0.17LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons