Ultramarine

#170AAA

General Information about #170AAA

The hexadecimal color #170AAA, also known as Ultramarine, is a deep shade of blue with a strong presence. It's composed of 9% red, 0% green, and 67% blue in the RGB color model. In the CMYK color model, it consists of 87% cyan, 100% magenta, 0% yellow, and 33% black. This color is often associated with feelings of trust, stability, and depth. It can evoke a sense of calmness and sophistication, making it a popular choice in branding, design, and artistic applications. The visual perception of ultramarine is a result of the human eye's sensitivity to short wavelengths of light, which are interpreted as blue. This color has historical significance, as natural ultramarine pigment was once derived from the mineral lapis lazuli and was highly valued in art.

The color #170AAA, a deep ultramarine, presents several accessibility considerations for web development. Its dark hue results in a low luminance value, which significantly affects text readability. When using this color for text, a very light foreground color is essential to ensure sufficient contrast, ideally achieving a contrast ratio of at least 4.5:1 as recommended by WCAG guidelines for Level AA compliance. For larger text (14pt bold or 18pt regular), a contrast ratio of 3:1 is acceptable. If used for interactive elements like buttons or links, consider providing additional visual cues such as underlines or borders, especially for users with low vision or color blindness. Furthermore, avoid using #170AAA as the sole indicator of functionality or state changes, as this can exclude users who cannot distinguish it from other colors. Careful attention to these details will make your designs more inclusive and accessible.

Shades

Digital Color Formats

RGB
23 10 170
RGB23 10 170
Red
Green
Blue
HSL
244.88 88.89% 35.29%
244.8888.8935.29HSL
Hue
Saturation
Lightness
HWB
244.88 3.92% 33.33%
244.883.9233.33HWB
Hue
Whiteness
Blackness
hex#170AAA
rgb23 10 170
hsl244.88 88.89% 35.29%
cmyk86.47% 94.12% 0% 33.33%
hwb244.88 3.92% 33.33%
xyz7.72 3.3 38.26
CMYK
86.47% 94.12% 0% 33.33%
86.4794.12033.33CMYK
Cyan
Magenta
Yellow
Key
XYZ
7.72 3.3 38.26
7.723.338.26XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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