Ultramarine

#0B0B90

About Ultramarine

Ultramarine, represented by the hex code #0B0B90, is a deep, saturated blue color with a rich history. Derived from the pigment of the lapis lazuli stone, ultramarine has long been prized for its brilliance and intensity, being used by renaissance painters and other artists. In the RGB color model, #0B0B90 consists of 4.3% red, 4.3% green, and 56.5% blue. This makes it a very blue-dominant color. In the CMYK color model, it comprises 92% cyan, 92% magenta, 0% yellow, and 43% black. Its usage in web design and other digital media requires careful consideration due to its potential impact on accessibility and user experience. Its deep nature makes it best suitable as an accent colour.

The hex color #0B0B90, a deep ultramarine, presents significant accessibility challenges. Its low lightness value results in poor contrast against light backgrounds, making text and interactive elements difficult to perceive for users 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. This color is unlikely to meet these requirements when paired with common background colors like white or light gray. To improve accessibility, consider using a lighter shade of blue or pairing #0B0B90 with a much lighter color. Alternatively, provide sufficient visual cues and labels to ensure that users can understand the content and functionality even if they cannot distinguish the color effectively. Careful consideration of color contrast is crucial for creating inclusive and user-friendly web experiences.

Shades

Digital Color Formats

RGB
11 11 144
RGB11 11 144
Red
Green
Blue
HSL
240 85.81% 30.39%
24085.8130.39HSL
Hue
Saturation
Lightness
HWB
240 4.31% 43.53%
2404.3143.53HWB
Hue
Whiteness
Blackness
hex#0B0B90
rgb11 11 144
hsl240 85.81% 30.39%
cmyk92.36% 92.36% 0% 43.53%
hwb240 4.31% 43.53%
xyz5.29 2.32 26.56
CMYK
92.36% 92.36% 0% 43.53%
92.3692.36043.53CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.29 2.32 26.56
5.292.3226.56XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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