Ultramarine

#1D0D8B

General Information about #1D0D8B (Ultramarine)

The hexadecimal color code #1D0D8B represents a shade of dark blue, also known as Ultramarine. It is composed of 11.4% red, 5.1% green, and 54.5% blue. In the RGB color model, this corresponds to values of R:29, G:13, and B:139. Its CMYK representation is C:79.14, M:90.65, Y:0.0, K:45.49. The color falls under the blue-violet spectrum and has a strong saturation. This specific shade of ultramarine is often associated with depth, sophistication, and a sense of mystery. It's a color that can evoke feelings of calmness and introspection.

The color #1D0D8B, a deep ultramarine, presents significant accessibility challenges, particularly for users with visual impairments. Its low lightness value results in poor contrast against both white and black backgrounds, potentially making text and other visual elements difficult to discern. According to WCAG guidelines, sufficient contrast ratios are crucial for readability and usability. Using this color for text or interactive elements requires careful consideration of contrast ratios against the background. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text and graphical objects. To improve accessibility, consider using lighter shades of blue or pairing it with a light, high-contrast color for text and interactive elements. Tools like contrast checkers can assist in evaluating and ensuring sufficient contrast.

Shades

Digital Color Formats

RGB
29 13 139
RGB29 13 139
Red
Green
Blue
HSL
247.62deg 82.89% 29.8%
247.6282.8929.8HSL
Hue
Saturation
Lightness
HWB
247.62deg 5.1% 45.49%
247.625.145.49HWB
Hue
Whiteness
Blackness
hex#1D0D8B
rgb29 13 139
hsl247.62deg 82.89% 29.8%
cmyk79.14% 90.65% 0% 45.49%
hwb247.62deg 5.1% 45.49%
xyz-d650.05 0.02 0.25
oklch0.3101 0.1854 272.78
oklab0.3101 0.01 -0.19
CMYK
79.14% 90.65% 0% 45.49%
79.1490.65045.49CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.25
0.050.020.25XYZ
X
Y
Z
OKLCH
0.3101 0.1854 272.78
0.31010.1854272.78LCH
Lightness
Chroma
Hue
OKLAB
0.3101 0.01 -0.19
0.31010.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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