Ultramarine

#11009B

About Ultramarine (#11009B)

Ultramarine, represented by the hexadecimal color code #11009B, is a deep and intense shade of blue. It is historically derived from the pigment made by grinding lapis lazuli, a rare and valuable stone. The name 'ultramarine' literally means 'beyond the sea,' reflecting the pigment's origin as it was imported into Europe from overseas. In the RGB color model, #11009B is composed of 6.67% red, 0% green, and 61.18% blue. It is a saturated color with a strong blue component, giving it a cool and calming feel. Ultramarine is often associated with royalty, wisdom, and spirituality. Due to its depth and richness, it has been used extensively in art, design, and fashion throughout history. Understanding its properties and cultural significance helps to effectively utilize it in modern applications.

The color #11009B, also known as Ultramarine, presents significant accessibility challenges due to its dark hue. Its low luminance results in poor contrast against light backgrounds, potentially making text and interactive elements difficult to read for users with visual impairments. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Ultramarine often falls short of these requirements when paired with common background colors like white or light gray. To improve accessibility, consider using Ultramarine sparingly, especially for crucial information. When using it for text or interactive elements, ensure sufficient contrast by pairing it with very light colors, such as white or light yellow. Also, provide alternative visual cues for users who may have difficulty distinguishing the color, such as labels, icons, or patterns.

Shades

Digital Color Formats

RGB
17 0 155
RGB17 0 155
Red
Green
Blue
HSL
246.58deg 100% 30.39%
246.5810030.39HSL
Hue
Saturation
Lightness
HWB
246.58deg 0% 39.22%
246.58039.22HWB
Hue
Whiteness
Blackness
hex#11009B
rgb17 0 155
hsl246.58deg 100% 30.39%
cmyk89.03% 100% 0% 39.22%
hwb246.58deg 0% 39.22%
xyz-d650.06 0.02 0.31
oklch0.3169 0.2123 267.63
oklab0.3169 -0.01 -0.21
CMYK
89.03% 100% 0% 39.22%
89.03100039.22CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.02 0.31
0.060.020.31XYZ
X
Y
Z
OKLCH
0.3169 0.2123 267.63
0.31690.2123267.63LCH
Lightness
Chroma
Hue
OKLAB
0.3169 -0.01 -0.21
0.3169-0.01-0.21LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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