Ultramarine

#180F8C

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #180F8C, is a deep, rich blue color that sits between violet and blue on the color wheel. It is known for its intensity and depth, often associated with qualities such as royalty, wisdom, and stability. The color derives its name from the Latin 'ultramarinus,' meaning 'beyond the sea,' as the original pigment was derived from the semi-precious stone lapis lazuli, imported from Asia. This pigment was highly prized in the Middle Ages and Renaissance, making it a color reserved for the elite. Today, synthetic ultramarine is widely available, making this once-rare color accessible for various applications.

The hex color #180F8C, also known as Ultramarine, presents significant accessibility challenges, particularly concerning color contrast. When used as a background color, it demands very light text colors to ensure readability, ideally white (#FFFFFF) or very light shades of gray. Dark text on this background would be illegible for most users, including those with visual impairments. It's crucial to test color combinations using WCAG guidelines to ensure sufficient contrast ratios. This color may also cause issues for individuals with color blindness, making it necessary to provide alternative visual cues, such as text labels or icons, to convey information effectively. Designing with accessibility in mind is paramount, and careful consideration of color contrast is essential when using such a dark and saturated color.

Shades

Digital Color Formats

RGB
24 15 140
RGB24 15 140
Red
Green
Blue
HSL
244.32 80.65% 30.39%
244.3280.6530.39HSL
Hue
Saturation
Lightness
HWB
244.32 5.88% 45.1%
244.325.8845.1HWB
Hue
Whiteness
Blackness
hex#180F8C
rgb24 15 140
hsl244.32 80.65% 30.39%
cmyk82.86% 89.29% 0% 45.1%
hwb244.32 5.88% 45.1%
xyz5.28 2.43 25
CMYK
82.86% 89.29% 0% 45.1%
82.8689.29045.1CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.28 2.43 25
5.282.4325XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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