Palettes / Colors / #2F445B

#2F445B — Deep Muted Blue

#2F445B is a blue color we call Deep Muted Blue, closest to the named color DarkSlateGray (#2F4F4F). It belongs to the blue family.

Color name

Closest CSS keyword: darkslategray (#2F4F4F) — not an exact match. CSS darkslategray gives you #2F4F4F, a different color; use #2F445B when you need this exact shade.

Sources: common names follow widely used color-name references; CSS keywords and their hex values follow the CSS Color specification.

#2F445B is a cool blue color associated with trust, calm and professionalism. It sits comfortably in the middle: usable for large areas in soft schemes, or as a supporting color beside something stronger.

Its strongest partner is its complement #5B462F; it also sits naturally between #2F5A5B and #302F5B. In the palettes below you can see it working alongside real color combinations from our collection.

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Color values

RGB & CMYK percentages

Red 18% · Green 27% · Blue 36%

Cyan 48% · Magenta 25% · Yellow 0% · Key 64%

CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.

Previews

CSS code for #2F445B

.text { color: #2F445B; }
.background { background-color: #2F445B; }
.border { border: 3px solid #2F445B; }
.text-rgb { color: rgb(47, 68, 91); }
.text-hsl { color: hsl(211, 32%, 27%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #2F445B; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(47, 68, 91, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #2F445B; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(47, 68, 91, 0.8); }

HTML: <p style="color:#2F445B">Text here</p> · <div style="background-color:#2F445B">Div content here</div>

Shades of #2F445B

Tints of #2F445B

Tones of #2F445B

Color harmonies

Complementary — #5B462F:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #2F445B: #FFFFFF.

Semi-transparent (opacity) text on #2F445B

Text set with opacity blends into the background, so its real contrast is lower than the solid ratios above. Choose a text color and an opacity to see the blended color and its true ratio:

How #2F445B looks with color blindness

Simulated with standard Machado color-vision-deficiency matrices — useful when this color carries meaning in charts, maps or interfaces:

Closest design-system colors

The nearest matches in the Tailwind CSS, Material Design and Bootstrap palettes — handy when you need a framework class instead of a raw hex:

Palettes with a similar color

These palettes use a close neighbour of #2F445B rather than the exact color:

Similar colors

The closest colors that actually appear in our palette collection — click any to open its page:

Browse neighbouring colors

← #2F445A  ·  #2F445C →

Frequently asked questions

What color is #2F445B?

#2F445B is Deep Muted Blue, a blue color (RGB 47, 68, 91). Its closest standard named color is DarkSlateGray.

What is the RGB and HSL of #2F445B?

#2F445B is RGB 47, 68, 91 — HSL 211°, 32%, 27% — CMYK 48%, 25%, 0%, 64%.

What colors go with #2F445B?

Its complement is #5B462F; analogous partners are #2F5A5B and #302F5B. It also appears in 6+ palettes in our collection.

Can I use #2F445B for text?

White text on #2F445B has a contrast ratio of 10.01:1 (passes WCAG AA); black text gives 2.10:1.