Ultramarine

#210DA7

General Information about #210DA7 (Ultramarine)

The hex color #210DA7, also known as Ultramarine, is a deep shade of blue often associated with sophistication, depth, and tranquility. In the RGB color model, it is composed of 12.9% red, 5.1% green, and 65.5% blue. Ultramarine historically was derived from the precious mineral lapis lazuli, making it a highly valued pigment, especially in Renaissance paintings. Today, synthetic versions allow for wider use in various applications, ranging from digital design to textile manufacturing. This particular shade of blue evokes a sense of calm and serenity, making it suitable for designs aiming to create a peaceful or professional atmosphere. Its intensity also allows it to be used as a striking accent color.

The color #210DA7, a deep ultramarine, presents some accessibility challenges, particularly when used as text on a white background. Its luminance is relatively low, resulting in a contrast ratio that may not meet WCAG (Web Content Accessibility Guidelines) standards for normal text (4.5:1) or large text (3:1). To improve accessibility, consider pairing #210DA7 with lighter colors such as white, light yellow or light grey for text. Alternatively, using #210DA7 as a background color with white or very light text can enhance readability. Employing tools to check color contrast ratios is crucial to ensure compliance with accessibility guidelines and provide a better experience for users with visual impairments. Furthermore, avoid using #210DA7 as the sole indicator for interactive elements; supplement it with additional cues like underlines or icons to accommodate users with color blindness. Thoughtful design choices can significantly improve the accessibility of content using this color.

Shades

Digital Color Formats

RGB
33 13 167
RGB33 13 167
Red
Green
Blue
HSL
247.79 85.56% 35.29%
247.7985.5635.29HSL
Hue
Saturation
Lightness
HWB
247.79 5.1% 34.51%
247.795.134.51HWB
Hue
Whiteness
Blackness
hex#210DA7
rgb33 13 167
hsl247.79 85.56% 35.29%
cmyk80.24% 92.22% 0% 34.51%
hwb247.79 5.1% 34.51%
xyz7.75 3.4 36.81
CMYK
80.24% 92.22% 0% 34.51%
80.2492.22034.51CMYK
Cyan
Magenta
Yellow
Key
XYZ
7.75 3.4 36.81
7.753.436.81XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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