Ultramarine

#1B0791

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #1B0791, is a deep, intense shade of blue. It derives its name from the pigment originally made from lapis lazuli, a semi-precious stone. Historically, ultramarine pigment was highly valued and expensive, often reserved for important artistic commissions, such as depictions of the Virgin Mary. Today, synthetic ultramarine is readily available, making it accessible for various applications. In color theory, ultramarine is considered a cool color, often associated with tranquility, depth, and sophistication. Its high saturation can make it a powerful visual element in design, capable of evoking a sense of elegance and mystery. The color sits between blue and violet on the color wheel. It has a relatively low luminance value.

The hex color #1B0791, also known as Ultramarine, presents specific accessibility challenges, primarily concerning color contrast. When used as a background color, it demands light-colored text to ensure readability. A contrast ratio of at least 4.5:1 is recommended for normal-sized text and 3:1 for large text (14pt bold or 18pt regular) to comply with WCAG 2.1 AA standards. Testing with accessibility tools is crucial to validate sufficient contrast. Avoid using this color for essential UI elements or informative graphics without careful consideration of contrast. For individuals with visual impairments, the low luminance can make it difficult to distinguish elements. Providing alternative text or visual cues is advised to enhance usability. When using #1B0791 for decorative purposes, ensure it doesn't interfere with the user's ability to perceive and interact with the content.

Shades

Digital Color Formats

RGB
27 7 145
RGB27 7 145
Red
Green
Blue
HSL
248.7deg 90.79% 29.8%
248.790.7929.8HSL
Hue
Saturation
Lightness
HWB
248.7deg 2.75% 43.14%
248.72.7543.14HWB
Hue
Whiteness
Blackness
hex#1B0791
rgb27 7 145
hsl248.7deg 90.79% 29.8%
cmyk81.38% 95.17% 0% 43.14%
hwb248.7deg 2.75% 43.14%
xyz-d650.06 0.02 0.27
oklch0.3126 0.1956 271.53
oklab0.3126 0.01 -0.2
CMYK
81.38% 95.17% 0% 43.14%
81.3895.17043.14CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.02 0.27
0.060.020.27XYZ
X
Y
Z
OKLCH
0.3126 0.1956 271.53
0.31260.1956271.53LCH
Lightness
Chroma
Hue
OKLAB
0.3126 0.01 -0.2
0.31260.01-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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