Ultramarine

#1B0395

General Information about #1B0395

#1B0395 is a dark shade of blue, often categorized as ultramarine. It is composed of 10.6% red, 1.2% green, and 58.4% blue. This color is located in the blue-violet segment of the color spectrum. In the RGB color model, its values are R:27, G:3, B:149. In the CMYK color model, it consists of 81.9% cyan, 98% magenta, 0% yellow, and 41.6% black. Due to its high blue content, it tends to evoke feelings of calmness, stability, and trust. In history, ultramarine was derived from the gemstone lapis lazuli, making it a highly prized pigment. Today, it is synthetically produced, making it more accessible for various applications. Its hex code is #1B0395.

The color #1B0395, a deep ultramarine, presents significant accessibility challenges. Its low luminance value of approximately 3 means it will have very poor contrast against standard white backgrounds. Text using this color will be difficult to read for users with low vision or color blindness. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is required for normal text and 3:1 for large text. #1B0395 fails to meet these requirements against white. To improve accessibility, it's crucial to pair this color with significantly lighter hues. Consider using very light yellows, whites, or light blues as background colors. Utilizing tools to measure color contrast ratios is highly recommended to ensure compliance with accessibility standards. Avoid using this color for critical information or interactive elements without careful consideration of contrast.

Shades

Digital Color Formats

RGB
27 3 149
RGB27 3 149
Red
Green
Blue
HSL
249.86deg 96.05% 29.8%
249.8696.0529.8HSL
Hue
Saturation
Lightness
HWB
249.86deg 1.18% 41.57%
249.861.1841.57HWB
Hue
Whiteness
Blackness
hex#1B0395
rgb27 3 149
hsl249.86deg 96.05% 29.8%
cmyk81.88% 97.99% 0% 41.57%
hwb249.86deg 1.18% 41.57%
xyz-d650.06 0.02 0.29
oklch0.3154 0.2018 271.24
oklab0.3154 0 -0.2
CMYK
81.88% 97.99% 0% 41.57%
81.8897.99041.57CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.02 0.29
0.060.020.29XYZ
X
Y
Z
OKLCH
0.3154 0.2018 271.24
0.31540.2018271.24LCH
Lightness
Chroma
Hue
OKLAB
0.3154 0 -0.2
0.31540-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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