Ultramarine

#0A0DAA

About Ultramarine

Ultramarine, represented by the hexadecimal color code #0A0DAA, is a deep blue color with a rich history. The name 'Ultramarine' originates from the Latin 'ultramarinus,' meaning 'beyond the sea,' as the pigment was originally imported from mines in Afghanistan by sea to Europe. In the past, it was derived from the semi-precious stone lapis lazuli, making it a costly pigment often reserved for the most important figures in paintings, such as the Virgin Mary. Today, synthetic versions of Ultramarine are widely available, making it a more accessible color. It is associated with feelings of calmness, sophistication, and depth. In color psychology, blue is often linked to trust, loyalty, wisdom, confidence, intelligence, faith, truth, and heaven.

The hex color #0a0daa, also known as Ultramarine, presents several accessibility considerations for web developers. Its dark hue necessitates careful attention to color contrast. When used as a background, it demands light-colored text to ensure readability, ideally adhering to WCAG (Web Content Accessibility Guidelines) standards. A contrast ratio of at least 4.5:1 for normal text and 3:1 for large text is recommended. Conversely, if Ultramarine is used for text, a very light background is essential. Avoid pairing it with similar dark shades, as this will create a low contrast ratio, rendering the text difficult to read for users, especially those with visual impairments. Sufficient padding and spacing around elements using this color can also improve visual clarity and user experience. When using this color to represent a button, make sure it is clearly visible and identifiable. Using a focus indicator is also important for users who navigate with a keyboard.

Shades

Digital Color Formats

RGB
10 13 170
RGB10 13 170
Red
Green
Blue
HSL
238.88 88.89% 35.29%
238.8888.8935.29HSL
Hue
Saturation
Lightness
HWB
238.88 3.92% 33.33%
238.883.9233.33HWB
Hue
Whiteness
Blackness
hex#0A0DAA
rgb10 13 170
hsl238.88 88.89% 35.29%
cmyk94.12% 92.35% 0% 33.33%
hwb238.88 3.92% 33.33%
xyz7.52 3.25 38.26
CMYK
94.12% 92.35% 0% 33.33%
94.1292.35033.33CMYK
Cyan
Magenta
Yellow
Key
XYZ
7.52 3.25 38.26
7.523.2538.26XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

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