Ultramarine

#1D03B0

General Information about Ultramarine

The hex color #1D03B0, also known as Ultramarine, is a deep, saturated shade of blue with a hint of violet. It derives its name from the precious pigment historically made from lapis lazuli, a gemstone sourced from overseas ('ultra mare' in Latin means 'beyond the sea'). Ultramarine blue has been prized for centuries by artists and was often reserved for painting the robes of the Virgin Mary due to its cost and rarity. In the RGB color model, #1D03B0 consists of 11.4% red, 1.2% green, and 69% blue. In the CMYK color model, it comprises 83.4% cyan, 98.2% magenta, 0% yellow, and 31% black. This color evokes feelings of calmness, depth, and sophistication. It is often associated with trust, loyalty, and intelligence. Ultramarine is commonly used in branding, web design, and art to convey a sense of stability and authority.

The color #1D03B0, a deep shade of ultramarine, presents some accessibility challenges, especially in web design. Its low luminance value means that text rendered in this color requires careful consideration of contrast ratios against background colors. To ensure readability, it is crucial to pair #1D03B0 with very light colors like white or very pale yellows. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Using online contrast checkers is highly advisable to verify compliance. Furthermore, avoid using #1D03B0 for interactive elements like links or buttons without clear visual cues, as users with visual impairments may struggle to identify them. Offering alternative color schemes can also improve accessibility for all users.

Shades

Digital Color Formats

RGB
29 3 176
RGB29 3 176
Red
Green
Blue
HSL
249.02deg 96.65% 35.1%
249.0296.6535.1HSL
Hue
Saturation
Lightness
HWB
249.02deg 1.18% 30.98%
249.021.1830.98HWB
Hue
Whiteness
Blackness
hex#1D03B0
rgb29 3 176
hsl249.02deg 96.65% 35.1%
cmyk83.52% 98.3% 0% 30.98%
hwb249.02deg 1.18% 30.98%
xyz-d650.08 0.03 0.41
oklch0.3533 0.2299 269.77
oklab0.3533 0 -0.23
CMYK
83.52% 98.3% 0% 30.98%
83.5298.3030.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.08 0.03 0.41
0.080.030.41XYZ
X
Y
Z
OKLCH
0.3533 0.2299 269.77
0.35330.2299269.77LCH
Lightness
Chroma
Hue
OKLAB
0.3533 0 -0.23
0.35330-0.23LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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