Ultramarine

#120B8A

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #120B8A, is a deep and intense shade of blue. Historically, ultramarine was derived from the rare and precious mineral lapis lazuli, making it a highly valued pigment, especially in Renaissance paintings. Today, synthetic ultramarine is widely available, retaining the same vibrant hue. This color conveys feelings of royalty, wisdom, and tranquility. In color psychology, blue is often associated with trust, intelligence, and stability. The hex code #120B8A consists of 7.1% red, 4.3% green, and 54.1% blue. It is a dark color with a relatively low saturation and high blue component, giving it its characteristic depth.

The color #120B8A, also known as Ultramarine, presents significant accessibility challenges, especially when used as text on a white background. Its low lightness value results in very poor contrast, making it difficult for users with visual impairments to read. According to WCAG guidelines, the contrast ratio falls far below the minimum requirement of 4.5:1 for normal text and 3:1 for large text. To improve accessibility, consider using #120B8A sparingly for decorative purposes or paired with very light text such as #FFFFFF to achieve an acceptable contrast ratio. Alternatively, employing a darker shade of blue or using background colors that significantly increase contrast would enhance usability for all users, including those with low vision or color blindness. Careful consideration of color combinations is crucial to ensure that web content is perceivable and usable by everyone.

Shades

Digital Color Formats

RGB
18 11 138
RGB18 11 138
Red
Green
Blue
HSL
243.31deg 85.23% 29.22%
243.3185.2329.22HSL
Hue
Saturation
Lightness
HWB
243.31deg 4.31% 45.88%
243.314.3145.88HWB
Hue
Whiteness
Blackness
hex#120B8A
rgb18 11 138
hsl243.31deg 85.23% 29.22%
cmyk86.96% 92.03% 0% 45.88%
hwb243.31deg 4.31% 45.88%
xyz-d650.05 0.02 0.24
oklch0.3012 0.1883 268.77
oklab0.3012 0 -0.19
CMYK
86.96% 92.03% 0% 45.88%
86.9692.03045.88CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.24
0.050.020.24XYZ
X
Y
Z
OKLCH
0.3012 0.1883 268.77
0.30120.1883268.77LCH
Lightness
Chroma
Hue
OKLAB
0.3012 0 -0.19
0.30120-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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