Ultramarine

#0F15A4

General Information about Ultramarine

The hexadecimal color code #0F15A4, commonly known as Ultramarine, represents a deep and vivid shade of blue. In the RGB color model, it is composed of 5.88% red, 8.24% green, and 64.31% blue. This composition results in a color that is strongly biased towards the blue end of the spectrum. Ultramarine has a wavelength of approximately 465 nm. Originating from the pigment derived from lapis lazuli, its name literally means "beyond the sea". This color is often associated with depth, stability, and knowledge. Due to its low red and green values and very high blue value, it is not recommended as text color on a white background, because of its poor color contrast.

The color #0f15a4, also known as Ultramarine, presents specific accessibility challenges, particularly concerning color contrast. When used as a foreground color, it necessitates careful pairing with background colors to ensure sufficient contrast for readability, especially for users with visual impairments. A light background is generally recommended to achieve a contrast ratio that meets WCAG (Web Content Accessibility Guidelines) standards. Using tools to evaluate color contrast ratios is crucial. Moreover, consider providing alternative styling options, allowing users to adjust colors according to their preferences, which significantly enhances accessibility. It's also advisable to avoid using this color as the sole indicator of important information, supplementing it with text labels or icons to cater to users who may not perceive the color accurately.

Shades

Digital Color Formats

RGB
15 21 164
RGB15 21 164
Red
Green
Blue
HSL
237.58 83.24% 35.1%
237.5883.2435.1HSL
Hue
Saturation
Lightness
HWB
237.58 5.88% 35.69%
237.585.8835.69HWB
Hue
Whiteness
Blackness
hex#0F15A4
rgb15 21 164
hsl237.58 83.24% 35.1%
cmyk90.85% 87.2% 0% 35.69%
hwb237.58 5.88% 35.69%
xyz7.17 3.32 35.38
CMYK
90.85% 87.2% 0% 35.69%
90.8587.2035.69CMYK
Cyan
Magenta
Yellow
Key
XYZ
7.17 3.32 35.38
7.173.3235.38XYZ
X
Y
Z

Alternative colors

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