Cerulean Blue

#3055B6

General Information about Cerulean Blue (#3055B6)

The hex color #3055B6 is a shade of cerulean blue, characterized by its moderate saturation and brightness. In the RGB color model, it is composed of 19.8% red, 33.33% green, and 71.37% blue. In the CMYK color model, it consists of 72% cyan, 53% magenta, 0% yellow, and 29% black. This color is often associated with feelings of tranquility, trust, and stability. Cerulean blue is frequently used in branding and marketing materials to convey a sense of professionalism and reliability. Historically, cerulean blue pigment was derived from cobalt(II) stannate, offering a stable and vibrant blue hue that was favored by artists for its lightfastness and resistance to fading. The name 'cerulean' itself is derived from the Latin word 'caeruleus', meaning 'dark blue' or 'sky blue'.

The hex color #3055B6, a shade of cerulean blue, presents specific accessibility considerations for web developers. When used as a foreground color, it requires careful selection of a contrasting background color to ensure sufficient legibility. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Pairing #3055B6 with light shades of yellow, white, or gray can help meet these contrast requirements, making content accessible to users with visual impairments. Tools like contrast checkers can precisely measure the contrast ratio. It is also important to consider users with color vision deficiency; relying solely on color to convey information can exclude these users. Supplementing color with text labels or icons will enhance the overall user experience and ensure inclusivity. Testing the color combination in different lighting conditions can further improve accessibility.

Shades

Digital Color Formats

RGB
48 85 182
RGB48 85 182
Red
Green
Blue
HSL
223.43deg 58.26% 45.1%
223.4358.2645.1HSL
Hue
Saturation
Lightness
HWB
223.43deg 18.82% 28.63%
223.4318.8228.63HWB
Hue
Whiteness
Blackness
hex#3055B6
rgb48 85 182
hsl223.43deg 58.26% 45.1%
cmyk73.63% 53.3% 0% 28.63%
hwb223.43deg 18.82% 28.63%
xyz-d650.13 0.11 0.46
oklch0.4794 0.1597 265.13
oklab0.4794 -0.01 -0.16
CMYK
73.63% 53.3% 0% 28.63%
73.6353.3028.63CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.13 0.11 0.46
0.130.110.46XYZ
X
Y
Z
OKLCH
0.4794 0.1597 265.13
0.47940.1597265.13LCH
Lightness
Chroma
Hue
OKLAB
0.4794 -0.01 -0.16
0.4794-0.01-0.16LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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