Marine Blue color code: #01497C
A bright sea blue, strong enough to serve as a primary brand colour.
Marine Blue · rgb(1, 73, 124)
Every format for Marine Blue
- HEX
- #01497C
- RGB
- rgb(1, 73, 124)
- HSL
- hsl(205, 98%, 25%)
- HSV
- 205°, 99%, 49%
- CMYK
- 99%, 41%, 0%, 51%
- Lightness
- 25% · dark
Hue sits at 205°, which makes Marine Blue a slightly cool blue navy, with 98% saturation. In the Teal Navy family it reads as a dark option.
Text contrast on Marine Blue
Contrast ratios are calculated using the WCAG 2.1 relative luminance formula. Normal body text needs 4.5:1 and large text needs 3:1 to pass AA.
White text on Marine Blue
The quick brown fox jumps over the lazy dog.
9.35:1 — AAA for normal textBlack text on Marine Blue
The quick brown fox jumps over the lazy dog.
2.25:1 — below AA, decorative use onlyMarine Blue text on white
The quick brown fox jumps over the lazy dog.
9.35:1 — AAA for normal textAccessibility notes
- Pair Marine Blue with white text for the strongest reading experience: that combination gives 9.35:1.
- Used as a text colour on white, it clears the 3:1 bar for large headings.
- Never rely on Marine Blue alone to communicate state. Add an icon, label or underline so the meaning survives for colour-blind users and in greyscale printing.
- When placing text over a photograph tinted with Marine Blue, add a solid overlay first. Contrast measured against a flat colour does not hold over varying imagery.
Using Marine Blue in CSS and HTML
CSS example
:root {
--marine-blue: #01497C;
}
.panel {
background-color: var(--marine-blue);
color: #FFFFFF;
border: 1px solid #01497C;
}HTML example
<div style="background-color: #01497C; color: #FFFFFF; padding: 1rem;">
Marine Blue #01497C
</div>Common uses
- Page and section backgrounds in dark interfaces, where it holds white text cleanly.
- Teal Navy palettes for brand systems that need a dependable cool anchor.
- Print work where a deep blue is preferred to black, using the CMYK build 99%, 41%, 0%, 51%.
- Data visualisation, as one step in a lightness-based navy scale.
Design recommendations
- Build lighter and darker variants by changing only the lightness in
hsl(205, 98%, 25%). Keeping hue fixed is what makes a scale look intentional. - Give Marine Blue at least one warm counterweight. A cool palette with no warm accent tends to read as cold rather than calm.
- Saturation is high here, so use it in measured amounts. Large flat areas of a saturated navy can feel heavy on screen.
Complementary and matching colors
Each of these is derived from the hue, saturation and lightness of Marine Blue. Click a swatch to copy it.
Similar navy shades
Continue exploring
FAQs about Marine Blue
What is the Marine Blue color code?
The Marine Blue color code is #01497C in HEX, rgb(1, 73, 124) in RGB and hsl(205, 98%, 25%) in HSL.
What is the RGB value of Marine Blue?
Marine Blue is rgb(1, 73, 124), meaning 1 units of red, 73 of green and 124 of blue on the 0 to 255 scale.
What is the CMYK value of Marine Blue?
In CMYK, Marine Blue converts to approximately 99%, 41%, 0%, 51%. Printed output will look slightly less saturated than the screen preview because CMYK covers a narrower gamut.
Does white text work on Marine Blue?
White text on Marine Blue gives a contrast ratio of 9.35:1, which is AAA for normal text.
Does black text work on Marine Blue?
Black text on Marine Blue gives a contrast ratio of 2.25:1, which is below AA, decorative use only.
Which colors go with Marine Blue?
Its direct complement is #D95C02, and the warm accent #E0A124 works well for calls to action. For a quieter scheme, pair it with the analogous blues listed above.
Is Marine Blue a light or dark navy?
At 25% lightness, Marine Blue is classed as a dark navy in this collection.