Ultramarine

#150497

General Information About Ultramarine

Ultramarine, represented by the hexadecimal color code #150497, is a deep, rich blue color reminiscent of the pigment derived from lapis lazuli. Historically, ultramarine was one of the most expensive and highly prized pigments, reserved for important commissions like the robes of the Virgin Mary in Renaissance paintings. The name 'ultramarine' literally means 'beyond the sea,' referring to the pigment's origin, as lapis lazuli had to be imported from distant lands, primarily Afghanistan. In modern times, synthetic ultramarine is widely available, making this beautiful color accessible for various applications, from paints and dyes to plastics and cosmetics. It conveys depth, stability, and trustworthiness, and is associated with intellect, authority, and calmness. The color is still associated with royalty.

The color #150497, a deep ultramarine, presents significant accessibility challenges, particularly for users with visual impairments. Its low luminance value of 3 means that text rendered in this color against a white background would have a very low contrast ratio, failing WCAG guidelines for readability. Specifically, it would not meet the minimum contrast ratio of 4.5:1 for normal text or 3:1 for large text (14pt bold or 18pt regular). To improve accessibility, it's imperative to pair this color with much lighter foreground colors. White or very light shades of yellow or green would provide the necessary contrast. When used for interactive elements like buttons or links, sufficient visual cues beyond color alone should be provided, such as underlines or icons, to ensure usability for colorblind users. Additionally, consider providing a high-contrast mode option on websites that use this color extensively to cater to users with diverse visual needs. Careful attention to color contrast is crucial for ensuring an inclusive and accessible user experience.

Shades

Digital Color Formats

RGB
21 4 151
RGB21 4 151
Red
Green
Blue
HSL
246.94 94.84% 30.39%
246.9494.8430.39HSL
Hue
Saturation
Lightness
HWB
246.94 1.57% 40.78%
246.941.5740.78HWB
Hue
Whiteness
Blackness
hex#150497
rgb21 4 151
hsl246.94 94.84% 30.39%
cmyk86.09% 97.35% 0% 40.78%
hwb246.94 1.57% 40.78%
xyz5.94 2.48 29.44
CMYK
86.09% 97.35% 0% 40.78%
86.0997.35040.78CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.94 2.48 29.44
5.942.4829.44XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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