Cerulean Blue

#2156C5

About Cerulean Blue (#2156C5)

Cerulean Blue, represented by the hexadecimal color code #2156C5, is a captivating shade of blue that sits between azure and sky blue on the color spectrum. It's characterized by its vibrant and somewhat grayish tone, reminiscent of a clear, deep sky or a tranquil ocean. This color derives its name from cerulean, a pigment made from magnesium stannate, and has been used in art and design for centuries. Cerulean Blue is often associated with feelings of calmness, serenity, and stability, making it a popular choice in various applications, including web design, branding, and interior decoration. In color psychology, blue is often linked to trust, honesty, and reliability, further enhancing the appeal of Cerulean Blue in professional and creative contexts.

The hex color #2156C5, a shade of Cerulean Blue, presents some accessibility considerations for web developers. When used as a foreground color for text, it's crucial to ensure sufficient contrast against the background. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Using a very light background color such as white or a light gray can help meet these requirements. If #2156C5 is used for interactive elements like buttons or links, hover and focus states should be clearly distinguishable through changes in color, size, or shape. Providing alternative text for images using this color is also essential for visually impaired users. Careful consideration of color combinations is vital to provide an inclusive experience for all users, including those with color vision deficiencies.

Shades

Digital Color Formats

RGB
33 86 197
RGB33 86 197
Red
Green
Blue
HSL
220.61deg 71.3% 45.1%
220.6171.345.1HSL
Hue
Saturation
Lightness
HWB
220.61deg 12.94% 22.75%
220.6112.9422.75HWB
Hue
Whiteness
Blackness
hex#2156C5
rgb33 86 197
hsl220.61deg 71.3% 45.1%
cmyk83.25% 56.35% 0% 22.75%
hwb220.61deg 12.94% 22.75%
xyz-d650.14 0.11 0.54
oklch0.488 0.1826 262.56
oklab0.488 -0.02 -0.18
CMYK
83.25% 56.35% 0% 22.75%
83.2556.35022.75CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.14 0.11 0.54
0.140.110.54XYZ
X
Y
Z
OKLCH
0.488 0.1826 262.56
0.4880.1826262.56LCH
Lightness
Chroma
Hue
OKLAB
0.488 -0.02 -0.18
0.488-0.02-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons