Ultramarine

#170DA7

General Information about #170DA7

The hexadecimal color #170DA7, also known as Ultramarine, is a deep shade of blue. It is composed of 9.02% red, 5.1% green, and 65.49% blue. In the RGB color model, this color has the values 23 red, 13 green, and 167 blue. The corresponding CMYK color code is 86% cyan, 92% magenta, 0% yellow, and 35% black. Ultramarine is often associated with feelings of calmness, trust, and authority. Historically, ultramarine pigment was derived from the semi-precious stone lapis lazuli, making it a highly prized color for artists. Today, synthetic ultramarine provides a more accessible and affordable alternative. This color is commonly used in various applications, including graphic design, web development, and interior decoration, due to its versatility and appealing aesthetic.

The color #170DA7, a deep ultramarine, presents several accessibility considerations for web developers. Its dark hue provides inherent contrast against lighter backgrounds, which is crucial for readability, especially for users with visual impairments. However, when pairing it with other dark colors, the contrast ratio can drop below the WCAG (Web Content Accessibility Guidelines) recommended levels. To ensure accessibility, developers should verify a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text (14 points bold or 18 points regular) against the background color. Using tools like contrast checkers can aid in this process. Furthermore, avoid using this color as the sole indicator of interactive elements; supplement it with text labels or icons to accommodate users with color vision deficiencies. It is important to test with various color blindness simulators to ensure the design remains understandable and usable for all users.

Shades

Digital Color Formats

RGB
23 13 167
RGB23 13 167
Red
Green
Blue
HSL
243.9 85.56% 35.29%
243.985.5635.29HSL
Hue
Saturation
Lightness
HWB
243.9 5.1% 34.51%
243.95.134.51HWB
Hue
Whiteness
Blackness
hex#170DA7
rgb23 13 167
hsl243.9 85.56% 35.29%
cmyk86.23% 92.22% 0% 34.51%
hwb243.9 5.1% 34.51%
xyz7.47 3.26 36.79
CMYK
86.23% 92.22% 0% 34.51%
86.2392.22034.51CMYK
Cyan
Magenta
Yellow
Key
XYZ
7.47 3.26 36.79
7.473.2636.79XYZ
X
Y
Z

Alternative colors

Applications

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