Slate Navy color code: #2F4156

A structural navy-grey that pairs cleanly with warm metallics.

Slate Navy
#2F4156

Slate Navy · rgb(47, 65, 86)

Every format for Slate Navy

HEX
#2F4156
RGB
rgb(47, 65, 86)
HSL
hsl(212, 29%, 26%)
HSV
212°, 45%, 34%
CMYK
45%, 24%, 0%, 66%
Lightness
26% · dark

Hue sits at 212°, which makes Slate Navy a slightly cool blue navy, with 29% saturation. In the Slate Navy family it reads as a dark option.

Text contrast on Slate Navy

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 Slate Navy

The quick brown fox jumps over the lazy dog.

10.44:1 — AAA for normal text

Black text on Slate Navy

The quick brown fox jumps over the lazy dog.

2.01:1 — below AA, decorative use only

Slate Navy text on white

The quick brown fox jumps over the lazy dog.

10.44:1 — AAA for normal text

Accessibility notes

  • Pair Slate Navy with white text for the strongest reading experience: that combination gives 10.44:1.
  • Used as a text colour on white, it clears the 3:1 bar for large headings.
  • Never rely on Slate Navy 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 Slate Navy, add a solid overlay first. Contrast measured against a flat colour does not hold over varying imagery.

Using Slate Navy in CSS and HTML

CSS example

:root {
  --slate-navy: #2F4156;
}

.panel {
  background-color: var(--slate-navy);
  color: #FFFFFF;
  border: 1px solid #2F4156;
}

HTML example

<div style="background-color: #2F4156; color: #FFFFFF; padding: 1rem;">
  Slate Navy #2F4156
</div>

Common uses

  • Page and section backgrounds in dark interfaces, where it holds white text cleanly.
  • Slate 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 45%, 24%, 0%, 66%.
  • 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(212, 29%, 26%). Keeping hue fixed is what makes a scale look intentional.
  • Give Slate Navy at least one warm counterweight. A cool palette with no warm accent tends to read as cold rather than calm.
  • Saturation is moderate, which makes this shade forgiving across large areas and long reading sessions.

Complementary and matching colors

Each of these is derived from the hue, saturation and lightness of Slate Navy. Click a swatch to copy it.

Complementary #917250
Split complement #915250
Warm accent #C1A749
Analogous cool #579C9E
Analogous warm #59579E
Triadic #7D455F

Similar navy shades

Muted Navy

Slate Navy

HEX
#37475A
RGB
55, 71, 90
HSL
213, 24%, 28%
CMYK
39%, 21%, 0%, 65%

Graphite Blue

Slate Navy

HEX
#2C3A47
RGB
44, 58, 71
HSL
209, 23%, 23%
CMYK
38%, 18%, 0%, 72%

Gunmetal Navy

Slate Navy

HEX
#253746
RGB
37, 55, 70
HSL
207, 31%, 21%
CMYK
47%, 21%, 0%, 73%

Storm Navy

Slate Navy

HEX
#3E4E62
RGB
62, 78, 98
HSL
213, 23%, 31%
CMYK
37%, 20%, 0%, 62%

Harbor Blue

Slate Navy

HEX
#33566E
RGB
51, 86, 110
HSL
204, 37%, 32%
CMYK
54%, 22%, 0%, 57%

Smoke Navy

Slate Navy

HEX
#45566B
RGB
69, 86, 107
HSL
213, 22%, 35%
CMYK
36%, 20%, 0%, 58%

Continue exploring

FAQs about Slate Navy

What is the Slate Navy color code?

The Slate Navy color code is #2F4156 in HEX, rgb(47, 65, 86) in RGB and hsl(212, 29%, 26%) in HSL.

What is the RGB value of Slate Navy?

Slate Navy is rgb(47, 65, 86), meaning 47 units of red, 65 of green and 86 of blue on the 0 to 255 scale.

What is the CMYK value of Slate Navy?

In CMYK, Slate Navy converts to approximately 45%, 24%, 0%, 66%. Printed output will look slightly less saturated than the screen preview because CMYK covers a narrower gamut.

Does white text work on Slate Navy?

White text on Slate Navy gives a contrast ratio of 10.44:1, which is AAA for normal text.

Does black text work on Slate Navy?

Black text on Slate Navy gives a contrast ratio of 2.01:1, which is below AA, decorative use only.

Which colors go with Slate Navy?

Its direct complement is #917250, and the warm accent #C1A749 works well for calls to action. For a quieter scheme, pair it with the analogous blues listed above.

Is Slate Navy a light or dark navy?

At 26% lightness, Slate Navy is classed as a dark navy in this collection.