Ultramarine

#0D188A

General Information About Ultramarine

The color #0D188A, also known as Ultramarine, is a deep shade of blue that evokes feelings of calmness, stability, and authority. It belongs to the blue color family and is characterized by its strong presence and depth. In color psychology, blues are often associated with trust, loyalty, and intelligence, making them popular choices for corporate branding and professional environments. Ultramarine, in particular, is often associated with the ocean or the night sky, suggesting vastness and serenity. It is a color that conveys a sense of sophistication and can be used to create a feeling of depth and mystery. The name 'Ultramarine' originates from the Latin 'ultramarinus', literally meaning 'beyond the sea', as the pigment was originally imported from Asia.

The color #0D188A, a deep ultramarine, presents some accessibility challenges. Its low luminance of approximately 3% means that it requires careful consideration of contrast ratios when used for text or interactive elements. According to WCAG guidelines, the minimum contrast ratio for standard text (AA level) is 4.5:1, and for large text (14pt bold or 18pt regular) it is 3:1. Using #0D188A against a white background fails to meet these requirements, making it difficult for users with visual impairments to read. Therefore, it is crucial to pair this color with significantly lighter hues. Accessible color combinations could involve shades of white, pale yellow, or light gray to ensure readability and usability. Tools for checking contrast ratios can assist designers in verifying compliance with accessibility standards and creating inclusive designs.

Shades

Digital Color Formats

RGB
13 24 138
RGB13 24 138
Red
Green
Blue
HSL
234.72deg 82.78% 29.61%
234.7282.7829.61HSL
Hue
Saturation
Lightness
HWB
234.72deg 5.1% 45.88%
234.725.145.88HWB
Hue
Whiteness
Blackness
hex#0D188A
rgb13 24 138
hsl234.72deg 82.78% 29.61%
cmyk90.58% 82.61% 0% 45.88%
hwb234.72deg 5.1% 45.88%
xyz-d650.05 0.03 0.24
oklch0.3126 0.1806 266.9
oklab0.3126 -0.01 -0.18
CMYK
90.58% 82.61% 0% 45.88%
90.5882.61045.88CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.03 0.24
0.050.030.24XYZ
X
Y
Z
OKLCH
0.3126 0.1806 266.9
0.31260.1806266.9LCH
Lightness
Chroma
Hue
OKLAB
0.3126 -0.01 -0.18
0.3126-0.01-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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