Ultramarine Color
Ultramarine is a purple color with hex code #2000B1. This page covers its meaning, all color values, harmonies, colors that go with ultramarine, shades, tints, similar colors, CSS examples, FAQs, and WCAG contrast ratios.
Ultramarine Color Values
What Does Ultramarine Mean?
Ultramarine belongs to the purple family of colors. Purple dye once cost more than gold, and the royal association never really wore off. The family blends red's warmth with blue's calm, which is an odd, appealing combination. Brands pick purple partly because their competitors don't. Being on the dark side, Ultramarine adds weight and depth. It suits text, shadows, and grounding elements more than wide-open backgrounds.
In the ISCC-NBS color naming system, Ultramarine is classified as a blue (nearest centroid: vivid purplish blue, #30267A). It is also known as Deep Sea Exploration.
Color Harmonies
Complementary
Analogous
Triadic
Colors That Go With Ultramarine
Ultramarine and #92B300 are complements, parked opposite each other on the wheel. Together they hit maximum contrast, so a rough 70/30 split keeps the pairing from shouting.
Analogous neighbors — #0039B3 and #7A00B3, which sit beside ultramarine on the wheel. Pairings like this feel calm and settled, which suits backgrounds and gradients.
For an energetic three-color palette, pair ultramarine with triadic partners #B32100 and #00B321. All three sit evenly spaced around the wheel, so the scheme stays lively without clashing.
Build and test these combinations in our Color Wheel Tool or check text readability with the Contrast Checker.
Tints and Shades
Tints (lighter)
Shades (darker)
Similar Colors
- Royal Blue —
#0504AA(Delta E 4) - Cobalt Blue —
#030AA7(Delta E 7) - Indigo Blue —
#3A18B1(Delta E 10) - True Blue —
#010FCC(Delta E 11) - MediumBlue —
#0000CD(Delta E 14)
CSS Examples
.text { color: #2000B1; }
.background { background-color: #2000B1; }
.border { border: 2px solid #2000B1; }
.shadow { box-shadow: 0 4px 6px #2000B140; }WCAG Contrast
Frequently Asked Questions
What is the hex code for ultramarine?
Ultramarine has the hex code #2000B1. In RGB notation it is rgb(32, 0, 177), in HSL it is hsl(251, 100%, 35%), and its OKLCH value is 0.355, 0.231, 270.6.
What does the color ultramarine mean?
Purple-family colors like ultramarine carry distinct psychological associations. Ultramarine belongs to the purple family of colors. Purple dye once cost more than gold, and the royal association never really wore off. The family blends red's warmth with blue's calm, which is an odd, appealing combination. Brands pick purple partly because their competitors don't. Being on the dark side, Ultramarine adds weight and depth. It suits text, shadows, and grounding elements more than wide-open backgrounds.
What colors go with ultramarine?
Ultramarine has three easy routes: its complement #92B300 for punch, its neighbors #0039B3 and #7A00B3 for something calmer, or triadic partners #B32100 and #00B321 when you want energy.
Is ultramarine a standard web color?
No — Ultramarine is not a CSS keyword. Use its hex value #2000B1 or any RGB/HSL equivalent in your stylesheets.
How do I make ultramarine lighter or darker?
To lighten ultramarine, add white to create tints; to darken it, add black to create shades. The tints and shades table above shows five computed steps of each, from #D1C7FF (lightest tint) to #06001F (darkest shade).
About Ultramarine
Ultramarine is classified as a Blue in the ISCC-NBS color naming system, within the Purple hue family. It has alternative names including Deep Sea Exploration. The color is recognized by XKCD, meodai.
Use our Color Converter to convert #2000B1 to any other color format, or explore the Color Wheel to find harmonious color combinations.