Ultramarine

#1A039F

General Information about Ultramarine

The color #1A039F, commonly known as Ultramarine, is a deep and vibrant shade of blue with a rich history. Derived from the Latin 'ultramarinus,' meaning 'beyond the sea,' it was originally made from ground lapis lazuli, a rare and expensive gemstone imported from Afghanistan. This explains why it was highly prized in Renaissance painting, often reserved for depicting the robes of the Virgin Mary. Today, synthetic Ultramarine is readily available, making it more accessible. In color theory, Ultramarine is considered a cool color, evoking feelings of calmness, serenity, and stability. It is often associated with trust, loyalty, wisdom, confidence, intelligence, faith, truth, and heaven. Its hexadecimal code, #1A039F, indicates a specific blend of red, green, and blue light that creates this unique hue.

The hex color #1A039F, also known as Ultramarine, presents some accessibility challenges primarily due to its dark hue. When used as a background color, it necessitates very light text (ideally white or a very pale shade) to ensure sufficient contrast for readability. According to WCAG guidelines, the contrast ratio between text and background should be at least 4.5:1 for normal text and 3:1 for large text to meet AA compliance. For AAA compliance, these ratios increase to 7:1 and 4.5:1, respectively. Given Ultramarine's darkness, careful consideration is crucial to meet these standards. Using online contrast checker tools is highly recommended to verify compliance. Avoid pairing it with medium to dark shades of gray, blue, or purple, as these combinations are likely to fail accessibility checks. Consider providing alternative themes or color options for users with visual impairments or color vision deficiencies to enhance overall accessibility.

Shades

Digital Color Formats

RGB
26 3 159
RGB26 3 159
Red
Green
Blue
HSL
248.85deg 96.3% 31.76%
248.8596.331.76HSL
Hue
Saturation
Lightness
HWB
248.85deg 1.18% 37.65%
248.851.1837.65HWB
Hue
Whiteness
Blackness
hex#1A039F
rgb26 3 159
hsl248.85deg 96.3% 31.76%
cmyk83.65% 98.11% 0% 37.65%
hwb248.85deg 1.18% 37.65%
xyz-d650.07 0.03 0.33
oklch0.3286 0.2128 270.04
oklab0.3286 0 -0.21
CMYK
83.65% 98.11% 0% 37.65%
83.6598.11037.65CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.03 0.33
0.070.030.33XYZ
X
Y
Z
OKLCH
0.3286 0.2128 270.04
0.32860.2128270.04LCH
Lightness
Chroma
Hue
OKLAB
0.3286 0 -0.21
0.32860-0.21LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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