Ultramarine

#12188B

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #12188B, is a deep, rich shade of blue. It derives its name from the Latin 'ultramarinus,' meaning 'beyond the sea,' as the pigment was originally imported from mines in Afghanistan by sea in the 14th and 15th centuries. Historically, it was made from ground lapis lazuli, making it a highly prized and expensive pigment used primarily in Renaissance paintings, especially for depictions of the Virgin Mary's robes. In modern usage, it's a versatile color often associated with depth, stability, and sophistication. In color psychology, blue is often linked to trustworthiness, intelligence, and serenity.

The accessibility of #12188B (Ultramarine) should be carefully considered, especially for text and interactive elements. Due to its dark nature, it requires light-colored text (white or very light shades of yellow or grey) to ensure sufficient contrast for readability. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text (14pt bold or 18pt regular). Using this color for backgrounds or large elements can be effective, but avoid using it for crucial interactive components without proper contrast. Testing with accessibility tools is essential to verify compliance with WCAG guidelines, ensuring that users with visual impairments can perceive and interact with the content effectively. Furthermore, avoid using this color as the sole indicator for interactive elements; supplement it with other visual cues, such as underlines or icons, to cater to users with color vision deficiencies.

Shades

Digital Color Formats

RGB
18 24 139
RGB18 24 139
Red
Green
Blue
HSL
237.02deg 77.07% 30.78%
237.0277.0730.78HSL
Hue
Saturation
Lightness
HWB
237.02deg 7.06% 45.49%
237.027.0645.49HWB
Hue
Whiteness
Blackness
hex#12188B
rgb18 24 139
hsl237.02deg 77.07% 30.78%
cmyk87.05% 82.73% 0% 45.49%
hwb237.02deg 7.06% 45.49%
xyz-d650.05 0.03 0.25
oklch0.3157 0.1807 268.2
oklab0.3157 -0.01 -0.18
CMYK
87.05% 82.73% 0% 45.49%
87.0582.73045.49CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.03 0.25
0.050.030.25XYZ
X
Y
Z
OKLCH
0.3157 0.1807 268.2
0.31570.1807268.2LCH
Lightness
Chroma
Hue
OKLAB
0.3157 -0.01 -0.18
0.3157-0.01-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons