Ultramarine

#0A148E

About Ultramarine (#0A148E)

The hex color code #0A148E represents a deep shade of ultramarine blue. In the RGB color model, it consists of 3.92% red, 7.84% green, and 55.69% blue. This indicates a strong bias towards the blue primary color, resulting in its characteristic deep blue appearance. Ultramarine, historically derived from the precious gemstone lapis lazuli, has been prized for its rich, vibrant hue. In the digital realm, #0A148E can be used in various applications such as web design, graphic design, and digital art to convey feelings of trust, stability, and depth. Due to its darkness, it is crucial to consider contrast ratios when using this color with text or other visual elements to ensure readability and accessibility.

The color #0A148E, a deep ultramarine, presents several accessibility considerations for web development. Due to its low lightness value, it's crucial to ensure sufficient contrast when used as a background or foreground color. According to WCAG guidelines, the contrast ratio between text and background should be at least 4.5:1 for normal text and 3:1 for large text. This deep blue may require light-colored text (white or light gray) to meet these standards. Tools like contrast checkers can help verify compliance. Also, avoid using this color as the sole indicator of interactive elements such as links or buttons; supplement it with other visual cues like underlines or icons to ensure usability for users with color vision deficiencies. When using this color, consider users with cognitive disabilities; simple layouts and clear typography enhance readability.

Shades

Digital Color Formats

RGB
10 20 142
RGB10 20 142
Red
Green
Blue
HSL
235.45deg 86.84% 29.8%
235.4586.8429.8HSL
Hue
Saturation
Lightness
HWB
235.45deg 3.92% 44.31%
235.453.9244.31HWB
Hue
Whiteness
Blackness
hex#0A148E
rgb10 20 142
hsl235.45deg 86.84% 29.8%
cmyk92.96% 85.92% 0% 44.31%
hwb235.45deg 3.92% 44.31%
xyz-d650.05 0.03 0.26
oklch0.3121 0.1891 266.29
oklab0.3121 -0.01 -0.19
CMYK
92.96% 85.92% 0% 44.31%
92.9685.92044.31CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.03 0.26
0.050.030.26XYZ
X
Y
Z
OKLCH
0.3121 0.1891 266.29
0.31210.1891266.29LCH
Lightness
Chroma
Hue
OKLAB
0.3121 -0.01 -0.19
0.3121-0.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons