Ultramarine

#190D8B

General Information about #190D8B

The hexadecimal color code #190D8B represents a dark shade of blue, specifically categorized as Ultramarine in color classification. In the RGB color model, it consists of 9.8% red, 5.1% green, and 54.5% blue. This combination produces a deep, rich blue hue often associated with depth, stability, and intelligence. Ultramarine has a historical significance, derived from the pigment made from lapis lazuli, a rare and valuable stone. This color is widely used in various design applications, including web design, graphic design, and interior decoration, for its calming and sophisticated qualities. Its dark nature makes it suitable for creating a sense of formality and trust, often employed by corporations and institutions seeking to convey reliability and professionalism. The CMYK values are C:82, M:91, Y:0, K:45.

The color #190D8B, a deep shade of ultramarine, presents accessibility challenges, particularly concerning color contrast. When used as text against a white or light background, the contrast ratio is significantly low, making it difficult for users with visual impairments to read. According to WCAG guidelines, the minimum contrast ratio for normal text is 4.5:1 and for large text is 3:1. This dark blue shade likely falls short of these recommendations, necessitating careful consideration of its use in user interfaces. To enhance accessibility, consider pairing it with a much lighter color such as #FFFFFF or #F0F0F0 to meet contrast requirements. Alternatively, increasing the text size or adding a text shadow or border can improve legibility. Avoid using this color for critical information or calls to action without appropriate contrast adjustments. When using #190D8B for backgrounds, ensure that the foreground text is light enough to provide sufficient contrast. Testing color combinations with accessibility tools is crucial to guarantee inclusivity.

Shades

Digital Color Formats

RGB
25 13 139
RGB25 13 139
Red
Green
Blue
HSL
245.71deg 82.89% 29.8%
245.7182.8929.8HSL
Hue
Saturation
Lightness
HWB
245.71deg 5.1% 45.49%
245.715.145.49HWB
Hue
Whiteness
Blackness
hex#190D8B
rgb25 13 139
hsl245.71deg 82.89% 29.8%
cmyk82.01% 90.65% 0% 45.49%
hwb245.71deg 5.1% 45.49%
xyz-d650.05 0.02 0.25
oklch0.3077 0.1865 271.14
oklab0.3077 0 -0.19
CMYK
82.01% 90.65% 0% 45.49%
82.0190.65045.49CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.25
0.050.020.25XYZ
X
Y
Z
OKLCH
0.3077 0.1865 271.14
0.30770.1865271.14LCH
Lightness
Chroma
Hue
OKLAB
0.3077 0 -0.19
0.30770-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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