Cerulean Blue

#304FB6

General Information about Cerulean Blue

Cerulean Blue, represented by the hexadecimal color code #304FB6, is a medium-dark shade of blue that evokes feelings of tranquility and stability. It is located in the blue-violet portion of the color spectrum. The color gets its name from cerulean, a deep blue pigment first used in the 1800s, that resembles the color of a clear sky or sea. In color theory, Cerulean Blue is considered a cool color. Cerulean Blue combines well with warm colors like yellows and oranges to create contrast and visual interest. It is often used in design to communicate trust, reliability, and calmness. The RGB values for #304FB6 are R:48, G:79, B:182. The CMYK values are C:74, M:57, Y:0, K:29. This color is found across various industries, from web design and marketing to fashion and interior decoration, owing to its versatile and universally appealing qualities.

The color #304FB6, also known as Cerulean Blue, presents some accessibility considerations for web development. When used as a background color, it's crucial to ensure sufficient contrast with the foreground text color. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text (14pt bold or 18pt regular) to meet WCAG AA standards. Tools like contrast checkers can help determine if the color combination meets these requirements. For users with visual impairments, including those with low vision or color blindness, inadequate contrast can make content difficult or impossible to read. Using a lighter text color like white or a very pale yellow can improve readability. It's also important to avoid relying solely on color to convey important information, as color-blind users may not be able to distinguish between certain colors. Providing alternative cues, such as text labels or icons, ensures that all users can access the information.

Shades

Digital Color Formats

RGB
48 79 182
RGB48 79 182
Red
Green
Blue
HSL
226.12deg 58.26% 45.1%
226.1258.2645.1HSL
Hue
Saturation
Lightness
HWB
226.12deg 18.82% 28.63%
226.1218.8228.63HWB
Hue
Whiteness
Blackness
hex#304FB6
rgb48 79 182
hsl226.12deg 58.26% 45.1%
cmyk73.63% 56.59% 0% 28.63%
hwb226.12deg 18.82% 28.63%
xyz-d650.12 0.1 0.45
oklch0.4672 0.1672 266.97
oklab0.4672 -0.01 -0.17
CMYK
73.63% 56.59% 0% 28.63%
73.6356.59028.63CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.12 0.1 0.45
0.120.10.45XYZ
X
Y
Z
OKLCH
0.4672 0.1672 266.97
0.46720.1672266.97LCH
Lightness
Chroma
Hue
OKLAB
0.4672 -0.01 -0.17
0.4672-0.01-0.17LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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