Cerulean Blue

#2555B1

General Information about Cerulean Blue

Cerulean Blue, represented by the hexadecimal color code #2555B1, is a vibrant and calming shade of blue. It belongs to the blue color family and is often associated with the sky and sea. In the RGB color model, it consists of 14.5% red, 33.3% green, and 69.4% blue. The color is more blue than red and green, which contributes to its distinctive blue hue. The name 'Cerulean' is derived from the Latin word 'caeruleus,' meaning dark blue. Cerulean Blue is widely used in various fields, including art, design, fashion, and web development, owing to its aesthetic appeal and versatility. It is often perceived as a color that evokes feelings of peace, tranquility, and stability, making it a popular choice for creating serene and trustworthy environments. This color also projects a tone of competence and stability.

The color #2555B1, also known as Cerulean Blue, presents some accessibility considerations for web developers. Its relatively low lightness value means it may not provide sufficient contrast against white backgrounds, potentially making text or interactive elements difficult to read for users with visual impairments. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. When using Cerulean Blue for text or important UI elements, careful consideration should be given to the background color to ensure adequate contrast. A lighter background or a darker shade of blue may be necessary to meet accessibility standards. Tools like contrast checkers can help evaluate the contrast ratio between foreground and background colors. Also, it's important to consider color blindness, where users may perceive colors differently. Providing alternative cues, such as icons or text labels, can enhance accessibility for colorblind users.

Shades

Digital Color Formats

RGB
37 85 177
RGB37 85 177
Red
Green
Blue
HSL
219.43deg 65.42% 41.96%
219.4365.4241.96HSL
Hue
Saturation
Lightness
HWB
219.43deg 14.51% 30.59%
219.4314.5130.59HWB
Hue
Whiteness
Blackness
hex#2555B1
rgb37 85 177
hsl219.43deg 65.42% 41.96%
cmyk79.1% 51.98% 0% 30.59%
hwb219.43deg 14.51% 30.59%
xyz-d650.12 0.1 0.43
oklch0.4712 0.156 261.76
oklab0.4712 -0.02 -0.15
CMYK
79.1% 51.98% 0% 30.59%
79.151.98030.59CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.12 0.1 0.43
0.120.10.43XYZ
X
Y
Z
OKLCH
0.4712 0.156 261.76
0.47120.156261.76LCH
Lightness
Chroma
Hue
OKLAB
0.4712 -0.02 -0.15
0.4712-0.02-0.15LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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