Ultramarine

#101388

General Information about Ultramarine (#101388)

The hex color #101388, also known as Ultramarine, is a dark shade of blue that is often associated with depth, stability, and trust. In the RGB color model, it is composed of 6.27% red, 7.45% green, and 53.33% blue. In the CMYK color model, it is composed of 88.22% cyan, 86.07% magenta, 0% yellow, and 46.67% black. Ultramarine derives its name from the Latin 'ultramarinus,' meaning 'beyond the sea,' as it was originally made from lapis lazuli imported from Afghanistan. Historically, it was a highly prized pigment used in paintings, especially during the Renaissance period. Today, synthetic versions of Ultramarine are widely available, making it more accessible for various applications.

The contrast ratio of #101388 with white text is 12.21:1, which provides excellent readability and meets WCAG AAA standards for text sizes both larger and smaller. However, when used with black text, the contrast ratio drops significantly to 1.62:1, which does not meet any WCAG guidelines. Therefore, using white text on a #101388 background is highly recommended for optimal accessibility. When considering users with visual impairments, larger text sizes are always preferred. Avoid using this color for critical information if paired with dark colors, as it may be difficult for some users to perceive clearly. Ensure sufficient spacing and padding around text to improve readability further. Also, when using this color as a background, ensure that interactive elements such as buttons and links are clearly distinguished through sufficient contrast and visual cues.

Shades

Digital Color Formats

RGB
16 19 136
RGB16 19 136
Red
Green
Blue
HSL
238.5deg 78.95% 29.8%
238.578.9529.8HSL
Hue
Saturation
Lightness
HWB
238.5deg 6.27% 46.67%
238.56.2746.67HWB
Hue
Whiteness
Blackness
hex#101388
rgb16 19 136
hsl238.5deg 78.95% 29.8%
cmyk88.24% 86.03% 0% 46.67%
hwb238.5deg 6.27% 46.67%
xyz-d650.05 0.02 0.23
oklch0.3051 0.1815 268.02
oklab0.3051 -0.01 -0.18
CMYK
88.24% 86.03% 0% 46.67%
88.2486.03046.67CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.23
0.050.020.23XYZ
X
Y
Z
OKLCH
0.3051 0.1815 268.02
0.30510.1815268.02LCH
Lightness
Chroma
Hue
OKLAB
0.3051 -0.01 -0.18
0.3051-0.01-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons