Cerulean Blue

#304CB2

General Information about Cerulean Blue

Cerulean Blue, represented by the hex code #304CB2, is a medium-dark shade of blue that evokes feelings of tranquility, trust, and stability. It is a popular color choice in various design fields due to its versatility and aesthetic appeal. In the RGB color model, #304CB2 is composed of 19.22% red, 29.8% green, and 70.59% blue. In the CMYK color model, it consists of 73% cyan, 58% magenta, 0% yellow, and 30% black. Cerulean Blue is often associated with the sky and sea, making it ideal for designs aiming to convey a sense of openness, peace, or depth. It is also considered a cool color, which can create a calming and refreshing visual impact.

The hex color #304CB2, also known as Cerulean Blue, offers moderate accessibility. When used as a foreground color on a white background, it provides a reasonable contrast ratio, generally above the minimum thresholds recommended by WCAG for normal text. However, for smaller text sizes or users with visual impairments, a darker shade might be preferred to ensure optimal readability. As a background color, pairing #304CB2 with lighter text colors such as white or pale yellow will maintain good readability. Careful consideration of the text size, font weight, and background color is crucial to ensure that content is accessible to a wide range of users. Tools such as contrast checkers should be employed during the design process to confirm that the color combination adheres to accessibility guidelines. Furthermore, avoid using color as the sole means of conveying important information; always provide alternative cues, such as text labels or icons.

Shades

Digital Color Formats

RGB
48 76 178
RGB48 76 178
Red
Green
Blue
HSL
227.08deg 57.52% 44.31%
227.0857.5244.31HSL
Hue
Saturation
Lightness
HWB
227.08deg 18.82% 30.2%
227.0818.8230.2HWB
Hue
Whiteness
Blackness
hex#304CB2
rgb48 76 178
hsl227.08deg 57.52% 44.31%
cmyk73.03% 57.3% 0% 30.2%
hwb227.08deg 18.82% 30.2%
xyz-d650.12 0.09 0.43
oklch0.4579 0.1655 267.67
oklab0.4579 -0.01 -0.17
CMYK
73.03% 57.3% 0% 30.2%
73.0357.3030.2CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.12 0.09 0.43
0.120.090.43XYZ
X
Y
Z
OKLCH
0.4579 0.1655 267.67
0.45790.1655267.67LCH
Lightness
Chroma
Hue
OKLAB
0.4579 -0.01 -0.17
0.4579-0.01-0.17LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons