Ultramarine

#03009B

General Information about Ultramarine

The hex color code #03009B, also known as Ultramarine, is a deep and intense shade of blue. In the RGB color model, it is composed of 1.18% red, 0% green, and 61.18% blue. This significant dominance of blue creates its characteristic depth. In the CMYK color model, it consists of 98.03% cyan, 100% magenta, 0% yellow, and 38.82% black. This color is often associated with qualities such as trust, loyalty, wisdom, confidence, intelligence, faith, truth, and heaven. Historically, ultramarine pigment was derived from lapis lazuli, making it a highly valued and expensive color. Today, synthetic ultramarine provides a more affordable alternative. Its vibrant nature makes it a popular choice in various applications.

The color #03009B, a deep ultramarine, presents significant accessibility challenges, particularly for users with visual impairments. Its very low luminance value (close to zero) means that it offers minimal contrast against light backgrounds. Consequently, text or graphical elements rendered in this color may be difficult or impossible for some users to discern. Web developers must ensure a high contrast ratio (ideally 4.5:1 for normal text and 3:1 for large text, as per WCAG guidelines) when using this color. This can be achieved by pairing it with very light shades, such as white or very pale yellows. When contrast is not sufficient, assistive technologies may not be able to accurately interpret the content, causing issues for screen reader users. Also, color blindness simulators can help designers to visualize how this color is perceived by individuals with different types of color vision deficiency. Failure to address these accessibility concerns may result in an exclusionary user experience.

Shades

Digital Color Formats

RGB
3 0 155
RGB3 0 155
Red
Green
Blue
HSL
241.16 100% 30.39%
241.1610030.39HSL
Hue
Saturation
Lightness
HWB
241.16 0% 39.22%
241.16039.22HWB
Hue
Whiteness
Blackness
hex#03009B
rgb3 0 155
hsl241.16 100% 30.39%
cmyk98.06% 100% 0% 39.22%
hwb241.16 0% 39.22%
xyz5.95 2.39 31.16
CMYK
98.06% 100% 0% 39.22%
98.06100039.22CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.95 2.39 31.16
5.952.3931.16XYZ
X
Y
Z

Alternative colors

Applications

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