Palettes / Colors / #2F304E

#2F304E — Deep Dusty Blue

#2F304E is a blue color we call Deep Dusty Blue, closest to the named color DarkSlateGray (#2F4F4F). It belongs to the blue family.

#2F304E 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 #504F30; it also sits naturally between #304150 and #3F3050. 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 19% · Blue 31%

Cyan 40% · Magenta 38% · Yellow 0% · Key 69%

Previews

CSS code for #2F304E

.text { color: #2F304E; }
.background { background-color: #2F304E; }
.border { border: 3px solid #2F304E; }
.text-rgb { color: rgb(47, 48, 78); }
.text-hsl { color: hsl(238, 25%, 25%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #2F304E; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(47, 48, 78, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #2F304E; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(47, 48, 78, 0.8); }

HTML: <p style="color:#2F304E">Text here</p> · <div style="background-color:#2F304E">Div content here</div>

Shades of #2F304E

Tints of #2F304E

Tones of #2F304E

Color harmonies

Complementary — #504F30:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #2F304E: #FFFFFF.

How #2F304E 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 #2F304E or a close neighbour

Similar colors

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

Browse neighbouring colors

← #2F304D  ·  #2F304F →

Frequently asked questions

What color is #2F304E?

#2F304E is Deep Dusty Blue, a blue color (RGB 47, 48, 78). Its closest standard named color is DarkSlateGray.

What is the RGB and HSL of #2F304E?

#2F304E is RGB 47, 48, 78 — HSL 238°, 25%, 25% — CMYK 40%, 38%, 0%, 69%.

What colors go with #2F304E?

Its complement is #504F30; analogous partners are #304150 and #3F3050. It also appears in 6+ palettes in our collection.

Can I use #2F304E for text?

White text on #2F304E has a contrast ratio of 12.70:1 (passes WCAG AA); black text gives 1.65:1.