Ultramarine

#051593

About Ultramarine (#051593)

Ultramarine, represented by the hexadecimal color code #051593, is a deep, rich blue hue. It derives its name from the pigment originally made from lapis lazuli, a semi-precious stone mined in Afghanistan. Historically, ultramarine was highly prized and expensive, reserved for important artworks. Synthetic ultramarine was developed in the 19th century, making it more accessible. In the RGB color model, #051593 is composed of 2% red, 8.2% green, and 57.6% blue. In the CMYK color model, it consists of 99% cyan, 86% magenta, 0% yellow, and 42% black. Ultramarine's deep tone evokes feelings of tranquility and sophistication, making it suitable for various applications, though careful consideration must be given to accessibility due to its low luminance.

The color #051593, a deep ultramarine, presents significant accessibility challenges. Its extremely low luminance value means that text rendered in this color requires a very light foreground color to achieve sufficient contrast for readability. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is necessary for normal text and 3:1 for large text. Using #051593 for text on a white background, or with insufficiently light backgrounds, will likely fail these criteria, making content difficult or impossible for users with visual impairments to read. Designers should carefully consider color contrast and provide options for users to adjust color schemes as needed to ensure accessibility. Furthermore, avoid using this color as the sole indicator of interactive elements or important information, as users with color blindness may not be able to distinguish it.

Shades

Digital Color Formats

RGB
5 21 147
RGB5 21 147
Red
Green
Blue
HSL
233.24deg 93.42% 29.8%
233.2493.4229.8HSL
Hue
Saturation
Lightness
HWB
233.24deg 1.96% 42.35%
233.241.9642.35HWB
Hue
Whiteness
Blackness
hex#051593
rgb5 21 147
hsl233.24deg 93.42% 29.8%
cmyk96.6% 85.71% 0% 42.35%
hwb233.24deg 1.96% 42.35%
xyz-d650.06 0.03 0.28
oklch0.3184 0.1951 265.18
oklab0.3184 -0.02 -0.19
CMYK
96.6% 85.71% 0% 42.35%
96.685.71042.35CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.03 0.28
0.060.030.28XYZ
X
Y
Z
OKLCH
0.3184 0.1951 265.18
0.31840.1951265.18LCH
Lightness
Chroma
Hue
OKLAB
0.3184 -0.02 -0.19
0.3184-0.02-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons