Ultramarine

#0B1891

General Information about Ultramarine

Ultramarine, represented by the hex code #0B1891, is a deep blue color known for its rich and intense hue. Historically, ultramarine was derived from the rare and precious mineral lapis lazuli, making it a highly valued pigment, particularly during the Renaissance. Its name, derived from the Latin 'ultramarinus,' literally means 'beyond the sea,' reflecting its origin from lands far beyond Europe. In modern times, synthetic ultramarine is widely available, offering the same vibrant color at a more affordable price. This color is often associated with royalty, wisdom, and sophistication, making it a popular choice in various artistic and design applications, from painting and graphic design to fashion and interior decor.

The hex color #0b1891, a deep ultramarine, presents significant accessibility challenges, particularly for users with visual impairments. Its low luminance value results in a poor contrast ratio against lighter backgrounds, making text and interactive elements difficult to read. According to WCAG guidelines, sufficient contrast is crucial for ensuring content is perceivable. To improve accessibility, it's recommended to pair this color with much lighter hues, such as whites, creams, or very light yellows. Tools like contrast checkers can help evaluate the color combination and ensure it meets accessibility standards. Additionally, providing alternative cues like icons or labels alongside color can further enhance usability for all users. Avoid using this color for critical information or interactive elements without careful consideration of contrast and alternative visual cues.

Shades

Digital Color Formats

RGB
11 24 145
RGB11 24 145
Red
Green
Blue
HSL
234.18deg 85.9% 30.59%
234.1885.930.59HSL
Hue
Saturation
Lightness
HWB
234.18deg 4.31% 43.14%
234.184.3143.14HWB
Hue
Whiteness
Blackness
hex#0B1891
rgb11 24 145
hsl234.18deg 85.9% 30.59%
cmyk92.41% 83.45% 0% 43.14%
hwb234.18deg 4.31% 43.14%
xyz-d650.06 0.03 0.27
oklch0.3209 0.1894 266.28
oklab0.3209 -0.01 -0.19
CMYK
92.41% 83.45% 0% 43.14%
92.4183.45043.14CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.03 0.27
0.060.030.27XYZ
X
Y
Z
OKLCH
0.3209 0.1894 266.28
0.32090.1894266.28LCH
Lightness
Chroma
Hue
OKLAB
0.3209 -0.01 -0.19
0.3209-0.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons