Ultramarine

#0A0D8E

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #0A0D8E, is a deep, rich blue pigment originally derived from the semi-precious stone lapis lazuli. The name itself, derived from the Latin 'ultramarinus,' literally means 'beyond the sea,' reflecting its origin from regions beyond the European seas. Throughout history, ultramarine has been highly valued for its intense color and was often used in religious art, particularly during the Middle Ages and Renaissance, to depict the robes of the Virgin Mary. Due to its costly production, it was often reserved for the most important figures and elements in paintings. Today, synthetic ultramarine is widely available, making the color more accessible for various applications in art, design, and industry. The color evokes feelings of depth, tranquility, and sophistication.

The color #0A0D8E, a deep ultramarine, presents some accessibility challenges, particularly for users with visual impairments. Its low luminance value of approximately 1% means that text rendered in this color on a white background, or vice versa, would likely fail WCAG (Web Content Accessibility Guidelines) contrast ratio requirements. A contrast ratio of at least 4.5:1 for standard text and 3:1 for large text is recommended to ensure readability. To improve accessibility, consider pairing #0A0D8E with much lighter colors such as whites, yellows, or very light grays. Testing with accessibility evaluation tools is essential to validate color combinations. Using this color for decorative elements or larger graphical elements might be acceptable, but its use for crucial information or interactive components should be carefully evaluated and adjusted to meet accessibility standards.

Shades

Digital Color Formats

RGB
10 13 142
RGB10 13 142
Red
Green
Blue
HSL
238.64deg 86.84% 29.8%
238.6486.8429.8HSL
Hue
Saturation
Lightness
HWB
238.64deg 3.92% 44.31%
238.643.9244.31HWB
Hue
Whiteness
Blackness
hex#0A0D8E
rgb10 13 142
hsl238.64deg 86.84% 29.8%
cmyk92.96% 90.85% 0% 44.31%
hwb238.64deg 3.92% 44.31%
xyz-d650.05 0.02 0.26
oklch0.3053 0.1937 266.41
oklab0.3053 -0.01 -0.19
CMYK
92.96% 90.85% 0% 44.31%
92.9690.85044.31CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.26
0.050.020.26XYZ
X
Y
Z
OKLCH
0.3053 0.1937 266.41
0.30530.1937266.41LCH
Lightness
Chroma
Hue
OKLAB
0.3053 -0.01 -0.19
0.3053-0.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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