Ultramarine

#051393

About Ultramarine (#051393)

Ultramarine, represented by the hex code #051393, is a deep, vivid blue pigment that has been highly valued since antiquity. Originally derived from the precious stone lapis lazuli, its name literally means "beyond the sea," reflecting its historical importation to Europe from mines in Asia. In the realm of color theory, Ultramarine is considered a cool color, often associated with qualities like stability, trust, and intelligence. It is a popular choice in art, design, and branding, lending a sense of sophistication and depth to various applications. Chemically, modern Ultramarine is a complex sodium aluminosilicate with sulfur, giving it its characteristic blue hue. Its historical significance and aesthetic appeal have made it a beloved color across cultures and centuries.

The hex color #051393, also known as Ultramarine, presents significant accessibility challenges, primarily due to its extremely dark hue. When used as a background color, it necessitates very light text (white or near-white) to achieve sufficient contrast for readability. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Ultramarine, being a very dark shade of blue, often struggles to meet these ratios with moderately dark text colors. Developers must carefully select foreground text colors and thoroughly test the color combination with accessibility tools to ensure compliance. Furthermore, avoid using this color for interactive elements without clear visual cues, as users with visual impairments may struggle to identify them. It's crucial to provide alternative styling options or high-contrast modes to enhance usability for all users.

Shades

Digital Color Formats

RGB
5 19 147
RGB5 19 147
Red
Green
Blue
HSL
234.08deg 93.42% 29.8%
234.0893.4229.8HSL
Hue
Saturation
Lightness
HWB
234.08deg 1.96% 42.35%
234.081.9642.35HWB
Hue
Whiteness
Blackness
hex#051393
rgb5 19 147
hsl234.08deg 93.42% 29.8%
cmyk96.6% 87.07% 0% 42.35%
hwb234.08deg 1.96% 42.35%
xyz-d650.06 0.03 0.28
oklch0.3162 0.1966 265.21
oklab0.3162 -0.02 -0.2
CMYK
96.6% 87.07% 0% 42.35%
96.687.07042.35CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.03 0.28
0.060.030.28XYZ
X
Y
Z
OKLCH
0.3162 0.1966 265.21
0.31620.1966265.21LCH
Lightness
Chroma
Hue
OKLAB
0.3162 -0.02 -0.2
0.3162-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons