Ultramarine

#051193

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #051193, is a deep and intense shade of blue. Historically, ultramarine was derived from the precious gemstone lapis lazuli, making it a pigment highly valued for its rarity and vibrant color. This hue is often associated with royalty, spirituality, and wisdom. In the RGB color model, it consists of 2.0% red, 6.7% green, and 57.6% blue. The color has a significant presence of blue, which explains its intense hue. Ultramarine is widely used in art, design, and various other applications where a rich and striking blue color is desired. Due to its dark nature, it is important to consider the contrast ratio when using this color in digital applications to ensure accessibility and readability.

The color #051193, a deep ultramarine, presents significant accessibility challenges, particularly for users with visual impairments. Its very low luminance of approximately 0.003 makes it difficult to perceive against many background colors. According to WCAG guidelines, it fails all contrast ratios against white and even light gray backgrounds. For web content, using this color for text or important interactive elements is strongly discouraged. If it's unavoidable due to branding or design constraints, ensure a very high contrast ratio (at least 7:1 for small text and 4.5:1 for large text) by pairing it with a very light color, such as a pale yellow or off-white. Additionally, provide alternative cues like icons or text labels to convey information effectively. Consider using accessibility evaluation tools to verify compliance with accessibility standards.

Shades

Digital Color Formats

RGB
5 17 147
RGB5 17 147
Red
Green
Blue
HSL
234.93deg 93.42% 29.8%
234.9393.4229.8HSL
Hue
Saturation
Lightness
HWB
234.93deg 1.96% 42.35%
234.931.9642.35HWB
Hue
Whiteness
Blackness
hex#051193
rgb5 17 147
hsl234.93deg 93.42% 29.8%
cmyk96.6% 88.44% 0% 42.35%
hwb234.93deg 1.96% 42.35%
xyz-d650.06 0.03 0.28
oklch0.3143 0.1979 265.24
oklab0.3143 -0.02 -0.2
CMYK
96.6% 88.44% 0% 42.35%
96.688.44042.35CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.03 0.28
0.060.030.28XYZ
X
Y
Z
OKLCH
0.3143 0.1979 265.24
0.31430.1979265.24LCH
Lightness
Chroma
Hue
OKLAB
0.3143 -0.02 -0.2
0.3143-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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