Ultramarine

#15019A

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #15019A, is a deep, rich blue color historically derived from the pigment of ground lapis lazuli. The name itself, 'ultramarine,' literally means 'beyond the sea,' reflecting its origin as a pigment imported into Europe from mines in Asia. This color is known for its intense and vibrant hue, making it a popular choice in various artistic and design applications. In the RGB color model, #15019A consists of 8.24% red, 0.39% green, and 60.39% blue. In the CMYK color model, it is composed of 86% cyan, 99% magenta, 0% yellow, and 40% black. Ultramarine is often associated with royalty, wisdom, and spirituality, and is used to convey a sense of depth and sophistication.

The color #15019A, also known as Ultramarine, presents significant accessibility challenges due to its dark hue and low contrast against lighter backgrounds. For web content, using this color for text on a white or very light background requires careful consideration of color contrast ratios. According to WCAG guidelines, the contrast ratio should be at least 4.5:1 for normal text and 3:1 for large text to meet Level AA compliance. Ultramarine might not meet these ratios, potentially making content difficult to read for users with visual impairments. To improve accessibility, consider pairing it with very light shades of yellow or white to ensure sufficient contrast. Additionally, avoid using it for critical interactive elements without proper visual cues, such as borders or icons, to ensure usability for all users, including those with color blindness.

Shades

Digital Color Formats

RGB
21 1 154
RGB21 1 154
Red
Green
Blue
HSL
247.84 98.71% 30.39%
247.8498.7130.39HSL
Hue
Saturation
Lightness
HWB
247.84 0.39% 39.61%
247.840.3939.61HWB
Hue
Whiteness
Blackness
hex#15019A
rgb21 1 154
hsl247.84 98.71% 30.39%
cmyk86.36% 99.35% 0% 39.61%
hwb247.84 0.39% 39.61%
xyz6.15 2.51 30.73
CMYK
86.36% 99.35% 0% 39.61%
86.3699.35039.61CMYK
Cyan
Magenta
Yellow
Key
XYZ
6.15 2.51 30.73
6.152.5130.73XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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