Ultramarine

#0A138E

General Information about #0A138E

#0A138E is a deep shade of blue, specifically categorized as Ultramarine in color terminology. This color is composed of 3.92% red, 7.45% green, and 55.69% blue. In the RGB color space, it translates to R:10, G:19, B:142. Its CMYK values are C:93, M:87, Y:0, K:44. Ultramarine blue has a rich history, originally derived from the precious gemstone lapis lazuli. It has been historically valued in paintings due to its vibrant and lasting color. Today, it's synthetically produced, making it more accessible for various applications, but its essence remains tied to sophistication and depth. The hex code #0A138E provides a precise way to represent and utilize this color in digital environments, maintaining its unique identity across different platforms.

The color #0A138E, a deep ultramarine, presents some accessibility challenges, particularly in text applications. Its low luminance value means that it requires careful consideration of contrast ratios to ensure readability for users, especially those with visual impairments. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text against its background. When using #0A138E for text, it's crucial to pair it with a light background color to meet these contrast requirements. Conversely, using it as a background color necessitates light-colored text. Tools like contrast checkers can assist in verifying compliance. Moreover, avoid relying solely on color to convey information; supplement color cues with text labels or icons to accommodate users with color vision deficiencies. Thoughtful application ensures inclusivity and accessibility for all users.

Shades

Digital Color Formats

RGB
10 19 142
RGB10 19 142
Red
Green
Blue
HSL
235.91deg 86.84% 29.8%
235.9186.8429.8HSL
Hue
Saturation
Lightness
HWB
235.91deg 3.92% 44.31%
235.913.9244.31HWB
Hue
Whiteness
Blackness
hex#0A138E
rgb10 19 142
hsl235.91deg 86.84% 29.8%
cmyk92.96% 86.62% 0% 44.31%
hwb235.91deg 3.92% 44.31%
xyz-d650.05 0.02 0.26
oklch0.311 0.1899 266.31
oklab0.311 -0.01 -0.19
CMYK
92.96% 86.62% 0% 44.31%
92.9686.62044.31CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.26
0.050.020.26XYZ
X
Y
Z
OKLCH
0.311 0.1899 266.31
0.3110.1899266.31LCH
Lightness
Chroma
Hue
OKLAB
0.311 -0.01 -0.19
0.311-0.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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