Cerulean Blue

#2F51B7

General Information about Cerulean Blue

Cerulean Blue, represented by the hexadecimal color code #2F51B7, is a captivating shade of blue with a moderate saturation and brightness. It falls within the blue color family and is often associated with feelings of calmness, tranquility, and stability. This particular shade of blue is frequently used in various design contexts, ranging from web design and graphic arts to interior design and fashion. Its versatility stems from its ability to evoke both a sense of professionalism and a touch of creativity, making it a popular choice across diverse applications. The color name 'Cerulean' itself is derived from the Latin word 'caeruleus,' meaning 'dark blue' or 'sky blue.'

The hex color #2F51B7, also known as Cerulean Blue, presents some accessibility challenges, particularly concerning color contrast. When used as a background color, it necessitates careful selection of foreground text colors to ensure readability. A light text color, such as white or a very pale yellow, is generally required to meet WCAG (Web Content Accessibility Guidelines) standards for contrast ratios. Using a dark text color on this background would likely fail accessibility checks. When #2F51B7 is used for text itself, it's crucial to pair it with a very light background. Also, avoid using this color for essential interactive elements (like buttons or links) without proper visual cues, such as borders or sufficient size, because users with visual impairments might have difficulty distinguishing them. Always test color combinations with accessibility tools to verify compliance.

Shades

Digital Color Formats

RGB
47 81 183
RGB47 81 183
Red
Green
Blue
HSL
225deg 59.13% 45.1%
22559.1345.1HSL
Hue
Saturation
Lightness
HWB
225deg 18.43% 28.24%
22518.4328.24HWB
Hue
Whiteness
Blackness
hex#2F51B7
rgb47 81 183
hsl225deg 59.13% 45.1%
cmyk74.32% 55.74% 0% 28.24%
hwb225deg 18.43% 28.24%
xyz-d650.13 0.1 0.46
oklch0.4715 0.1664 266.15
oklab0.4715 -0.01 -0.17
CMYK
74.32% 55.74% 0% 28.24%
74.3255.74028.24CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.13 0.1 0.46
0.130.10.46XYZ
X
Y
Z
OKLCH
0.4715 0.1664 266.15
0.47150.1664266.15LCH
Lightness
Chroma
Hue
OKLAB
0.4715 -0.01 -0.17
0.4715-0.01-0.17LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons