Cerulean Blue

#1F49D1

General Information about Cerulean Blue

Cerulean Blue, represented by the hexadecimal color code #1F49D1, is a captivating shade of blue that evokes feelings of serenity and sophistication. It is a medium-dark hue situated between azure and sky blue. The color is composed of 12.2% red, 28.63% green, and 82% blue. In the RGB color space, its values are R:31, G:73, and B:209. Cerulean Blue has a calming influence, often associated with tranquility, stability, and wisdom. Its unique spectral properties make it a popular choice in diverse creative fields. In design, it effectively conveys trust and clarity, making it ideal for corporate branding and user interfaces seeking to project reliability. The name 'cerulean' is derived from the Latin word 'caeruleus,' meaning 'dark blue,' 'blue-green,' or 'sky-colored.'

The hex color #1F49D1, also known as Cerulean Blue, presents some accessibility challenges, especially in text contexts. Its relatively low luminance value means that using it as text on a white background may result in insufficient contrast, making it difficult for users with visual impairments to read comfortably. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Cerulean Blue often falls short of these requirements when paired with light backgrounds. Therefore, it's crucial to use contrast checking tools to ensure compliance. To improve accessibility, consider using Cerulean Blue with darker backgrounds or pairing it with lighter text colors such as white or very light grays to achieve the necessary contrast ratio. Additionally, avoid using it for essential interactive elements without sufficient contrast, as this can hinder usability for all users, particularly those with disabilities.

Shades

Digital Color Formats

RGB
31 73 209
RGB31 73 209
Red
Green
Blue
HSL
225.84deg 74.17% 47.06%
225.8474.1747.06HSL
Hue
Saturation
Lightness
HWB
225.84deg 12.16% 18.04%
225.8412.1618.04HWB
Hue
Whiteness
Blackness
hex#1F49D1
rgb31 73 209
hsl225.84deg 74.17% 47.06%
cmyk85.17% 65.07% 0% 18.04%
hwb225.84deg 12.16% 18.04%
xyz-d650.14 0.1 0.61
oklch0.4732 0.2138 265.21
oklab0.4732 -0.02 -0.21
CMYK
85.17% 65.07% 0% 18.04%
85.1765.07018.04CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.14 0.1 0.61
0.140.10.61XYZ
X
Y
Z
OKLCH
0.4732 0.2138 265.21
0.47320.2138265.21LCH
Lightness
Chroma
Hue
OKLAB
0.4732 -0.02 -0.21
0.4732-0.02-0.21LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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