Cerulean Blue

#2151C5

General Information about Cerulean Blue

The hexadecimal color code #2151C5 represents a specific shade of blue, often referred to as cerulean blue. In the RGB (Red, Green, Blue) color model, it is composed of 12.9% red, 31.8% green, and 77.3% blue. This composition indicates a strong presence of blue, with a smaller contribution from green and an even smaller presence of red, resulting in a deep, vibrant blue hue. Colors like #2151C5 can evoke feelings of calmness, trust, and stability, which is why it is often used in corporate branding and website design. It's essential to consider the color's cultural and psychological associations when incorporating it into visual designs to ensure it aligns with the intended message and audience perception. In graphic design, the color #2151C5 can be utilized in logos, backgrounds, or accents, adding a touch of sophistication and modernity.

The color #2151C5, a deep cerulean blue, presents some accessibility considerations for web developers. When used as a background color, it is crucial to ensure sufficient contrast with the foreground text. A light color like white or a pale yellow is recommended to meet WCAG (Web Content Accessibility Guidelines) standards for readability. Conversely, if #2151C5 is used as a text color, a light background should be used. The color's luminance value is relatively low, meaning it can be challenging for users with low vision to distinguish it against darker backgrounds. Tools such as contrast checkers can help to ensure compliance. In interactive elements, focus states must be clearly defined, using a contrasting color to highlight buttons or links when they are selected or hovered over, thereby improving the user experience for individuals with visual impairments.

Shades

Digital Color Formats

RGB
33 81 197
RGB33 81 197
Red
Green
Blue
HSL
222.44deg 71.3% 45.1%
222.4471.345.1HSL
Hue
Saturation
Lightness
HWB
222.44deg 12.94% 22.75%
222.4412.9422.75HWB
Hue
Whiteness
Blackness
hex#2151C5
rgb33 81 197
hsl222.44deg 71.3% 45.1%
cmyk83.25% 58.88% 0% 22.75%
hwb222.44deg 12.94% 22.75%
xyz-d650.14 0.1 0.54
oklch0.478 0.1887 263.7
oklab0.478 -0.02 -0.19
CMYK
83.25% 58.88% 0% 22.75%
83.2558.88022.75CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.14 0.1 0.54
0.140.10.54XYZ
X
Y
Z
OKLCH
0.478 0.1887 263.7
0.4780.1887263.7LCH
Lightness
Chroma
Hue
OKLAB
0.478 -0.02 -0.19
0.478-0.02-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons