Ultramarine

#0F10A5

General Information about Ultramarine

The hex color code #0F10A5 represents a deep shade of blue known as Ultramarine. It is composed of 5.9% red, 6.3% green, and 64.7% blue. In the RGB color space, this translates to R:15, G:16, B:165. This color is often associated with qualities such as trust, loyalty, wisdom, confidence, intelligence, faith, truth, and heaven. Ultramarine is derived from the pigment lapis lazuli, a semi-precious stone, making it a historically significant and highly valued color. Its rich, intense hue has been used extensively in art, particularly during the Renaissance, where it was reserved for depicting important figures and religious scenes due to its cost and vibrancy. Today, ultramarine is widely used in various applications, from digital design to fashion, retaining its association with sophistication and depth.

The hex color #0F10A5, a deep ultramarine, presents significant accessibility challenges, particularly in text-based contexts. Its low luminance value necessitates careful consideration of contrast ratios. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is required for normal text and 3:1 for large text against its background to ensure readability for users with moderate visual impairments. When using #0F10A5 as a text color, pairing it with a light background, such as #FFFFFF (white) or a very light gray, is crucial. Conversely, as a background color, it demands light-colored text, like white or a pale yellow, to meet accessibility standards. Tools such as contrast checkers can assist designers and developers in verifying adequate contrast. Failure to meet these requirements can exclude users with low vision or color blindness, hindering their ability to access content effectively. Therefore, thoughtful implementation and testing are essential when incorporating this color into digital interfaces.

Shades

Digital Color Formats

RGB
15 16 165
RGB15 16 165
Red
Green
Blue
HSL
239.6deg 83.33% 35.29%
239.683.3335.29HSL
Hue
Saturation
Lightness
HWB
239.6deg 5.88% 35.29%
239.65.8835.29HWB
Hue
Whiteness
Blackness
hex#0F10A5
rgb15 16 165
hsl239.6deg 83.33% 35.29%
cmyk90.91% 90.3% 0% 35.29%
hwb239.6deg 5.88% 35.29%
xyz-d650.07 0.03 0.36
oklch0.3405 0.2164 266.7
oklab0.3405 -0.01 -0.22
CMYK
90.91% 90.3% 0% 35.29%
90.9190.3035.29CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.03 0.36
0.070.030.36XYZ
X
Y
Z
OKLCH
0.3405 0.2164 266.7
0.34050.2164266.7LCH
Lightness
Chroma
Hue
OKLAB
0.3405 -0.01 -0.22
0.3405-0.01-0.22LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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