Cerulean Blue

#2158B5

General Information about Cerulean Blue

Cerulean blue, represented by the hexadecimal color code #2158B5, is a medium-dark shade of blue that sits between azure and sky blue on the color spectrum. It is often associated with the sky, the ocean, and feelings of tranquility and peace. In color psychology, blue is often linked to trust, stability, and wisdom. Cerulean blue derives its name from the Latin word "caeruleus," meaning dark blue, and has been used in art and design for centuries. This particular shade of blue is created by combining specific amounts of red, green, and blue light. In a digital context, understanding hex codes like #2158B5 is crucial for accurately representing colors across different devices and platforms. Its widespread appeal makes it a versatile choice for various design applications.

The color #2158B5, a shade of cerulean blue, presents some accessibility considerations for web design. When used as a background color, it's crucial to ensure sufficient contrast with the foreground text or elements. A light text color, such as white or a pale yellow, would likely provide better readability. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Tools like WebAIM's contrast checker can help verify compliance. For users with visual impairments, inadequate contrast can make content difficult or impossible to perceive. Furthermore, avoid relying solely on color to convey important information; use text labels or other visual cues to ensure inclusivity. While cerulean blue can evoke feelings of calmness and trust, its accessibility should be carefully evaluated in every context to ensure an inclusive user experience.

Shades

Digital Color Formats

RGB
33 88 181
RGB33 88 181
Red
Green
Blue
HSL
217.7deg 69.16% 41.96%
217.769.1641.96HSL
Hue
Saturation
Lightness
HWB
217.7deg 12.94% 29.02%
217.712.9429.02HWB
Hue
Whiteness
Blackness
hex#2158B5
rgb33 88 181
hsl217.7deg 69.16% 41.96%
cmyk81.77% 51.38% 0% 29.02%
hwb217.7deg 12.94% 29.02%
xyz-d650.12 0.11 0.45
oklch0.4795 0.1588 260.36
oklab0.4795 -0.03 -0.16
CMYK
81.77% 51.38% 0% 29.02%
81.7751.38029.02CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.12 0.11 0.45
0.120.110.45XYZ
X
Y
Z
OKLCH
0.4795 0.1588 260.36
0.47950.1588260.36LCH
Lightness
Chroma
Hue
OKLAB
0.4795 -0.03 -0.16
0.4795-0.03-0.16LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons