Cerulean Blue

#215AC5

General Information about #215AC5

The hexadecimal color code #215AC5 represents a shade of cerulean blue, characterized by its moderate saturation and depth. It falls within the blue spectrum, leaning towards the cooler side. In the RGB color model, it is composed of 13.96% red, 35.29% green, and 77.25% blue. Its CMYK representation is approximately 79% cyan, 54% magenta, 0% yellow, and 23% black. This color evokes feelings of calmness, serenity, and trust, making it suitable for various applications, especially in branding and digital interfaces where conveying trustworthiness and stability is crucial. It is not an extremely common color in nature, which makes it stand out. Historically, blue pigments were derived from rare minerals, rendering them precious and associated with royalty and high status.

The color #215AC5, a shade of cerulean blue, presents moderate accessibility challenges. With a luminance value of approximately 0.14, it falls on the darker side, requiring careful consideration of text and interactive element contrast. When used as a background color, ensure that the foreground text is light enough to meet WCAG (Web Content Accessibility Guidelines) AA standards, which require a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. A color like white (#FFFFFF) or a very light gray would typically be necessary. For interactive elements like buttons, provide sufficient visual cues beyond color alone, such as borders or icons, to ensure usability for users with color vision deficiencies. Avoid using this color for crucial information if color is the sole means of conveying meaning. Always test color combinations with accessibility evaluation tools to confirm compliance.

Shades

Digital Color Formats

RGB
33 90 197
RGB33 90 197
Red
Green
Blue
HSL
219.15deg 71.3% 45.1%
219.1571.345.1HSL
Hue
Saturation
Lightness
HWB
219.15deg 12.94% 22.75%
219.1512.9422.75HWB
Hue
Whiteness
Blackness
hex#215AC5
rgb33 90 197
hsl219.15deg 71.3% 45.1%
cmyk83.25% 54.31% 0% 22.75%
hwb219.15deg 12.94% 22.75%
xyz-d650.14 0.12 0.54
oklch0.4962 0.1778 261.53
oklab0.4962 -0.03 -0.18
CMYK
83.25% 54.31% 0% 22.75%
83.2554.31022.75CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.14 0.12 0.54
0.140.120.54XYZ
X
Y
Z
OKLCH
0.4962 0.1778 261.53
0.49620.1778261.53LCH
Lightness
Chroma
Hue
OKLAB
0.4962 -0.03 -0.18
0.4962-0.03-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons