Ultramarine

#180AAA

General Information about Ultramarine (#180AAA)

The hexadecimal color #180AAA, also known as Ultramarine, is a deep and rich shade of blue. It's a color often associated with depth, stability, and sophistication. In the RGB color model, #180AAA consists of 9.41% red, 0% green, and 66.67% blue. This composition gives it a strong blue dominance, characteristic of the Ultramarine pigment, which historically was derived from the precious gemstone lapis lazuli. In color psychology, blues are generally associated with trust, loyalty, and intelligence. Ultramarine, in particular, carries a sense of elegance and can be used to evoke feelings of serenity and formality. Its dark hue makes it suitable for applications where a strong, grounded presence is desired.

The color #180AAA, a deep shade of Ultramarine, presents several accessibility considerations for web developers. Its dark nature means it requires careful pairing with text and other elements to ensure sufficient contrast. According to WCAG guidelines, the contrast ratio between text and background should be at least 4.5:1 for normal text and 3:1 for large text. When using #180AAA as a background, a light text color such as white or a very light shade of yellow is highly recommended to meet these contrast requirements. Utilizing contrast checker tools is essential to verify compliance. Additionally, avoid using this color as the sole indicator for interactive elements like links or buttons; supplementary cues such as underlines or icons should be provided to assist users with visual impairments. Thoughtful application of this color improves usability and inclusivity for all users.

Shades

Digital Color Formats

RGB
24 10 170
RGB24 10 170
Red
Green
Blue
HSL
245.25 88.89% 35.29%
245.2588.8935.29HSL
Hue
Saturation
Lightness
HWB
245.25 3.92% 33.33%
245.253.9233.33HWB
Hue
Whiteness
Blackness
hex#180AAA
rgb24 10 170
hsl245.25 88.89% 35.29%
cmyk85.88% 94.12% 0% 33.33%
hwb245.25 3.92% 33.33%
xyz7.74 3.31 38.26
CMYK
85.88% 94.12% 0% 33.33%
85.8894.12033.33CMYK
Cyan
Magenta
Yellow
Key
XYZ
7.74 3.31 38.26
7.743.3138.26XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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