Ultramarine

#2003B1

About Ultramarine

Ultramarine is a deep blue pigment originally made by grinding lapis lazuli into a powder. The name comes from the Latin 'ultramarinus', literally 'beyond the sea', as the pigment was imported into Europe from Asia. During the Middle Ages and Renaissance, it was the finest and most expensive blue available, often reserved for the robes of the Virgin Mary in paintings. Nowadays, synthetic ultramarine is widely available, offering the same vibrant color at a more affordable price. It's known for its exceptional lightfastness and stability, making it a popular choice in various applications, from art to cosmetics. Its chemical composition is a complex sodium aluminosilicate with sulfur.

The contrast ratio of #2003B1 (Ultramarine) with white text is very poor, at approximately 1.44:1. This falls far short of the WCAG recommended contrast ratio of 4.5:1 for normal text and 3:1 for large text. Therefore, using white text on an Ultramarine background is strongly discouraged due to accessibility concerns. Conversely, using black text on an Ultramarine background results in a contrast ratio of 4.64:1. This meets the WCAG AA standard for normal text, making it an acceptable, though not ideal, pairing. For optimal accessibility, consider using a lighter color for text on an Ultramarine background or a darker color for the background itself to improve readability for users with visual impairments. Tools such as contrast checkers can help determine suitable color combinations.

Shades

Digital Color Formats

RGB
32 3 177
RGB32 3 177
Red
Green
Blue
HSL
250 96.67% 35.29%
25096.6735.29HSL
Hue
Saturation
Lightness
HWB
250 1.18% 30.59%
2501.1830.59HWB
Hue
Whiteness
Blackness
hex#2003B1
rgb32 3 177
hsl250 96.67% 35.29%
cmyk81.92% 98.31% 0% 30.59%
hwb250 1.18% 30.59%
xyz8.56 3.55 41.83
CMYK
81.92% 98.31% 0% 30.59%
81.9298.31030.59CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.56 3.55 41.83
8.563.5541.83XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

HexColo.rs © 2025