Palettes / Colors / #263E4E

#263E4E — Deep Muted Blue

#263E4E is a blue color we call Deep Muted Blue, closest to the named color DarkSlateGray (#2F4F4F). It belongs to the blue family.

#263E4E 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 #4F3727; it also sits naturally between #274F4B and #272B4F. 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 15% · Green 24% · Blue 31%

Cyan 51% · Magenta 21% · Yellow 0% · Key 69%

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

Previews

CSS code for #263E4E

.text { color: #263E4E; }
.background { background-color: #263E4E; }
.border { border: 3px solid #263E4E; }
.text-rgb { color: rgb(38, 62, 78); }
.text-hsl { color: hsl(204, 34%, 23%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #263E4E; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(38, 62, 78, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #263E4E; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(38, 62, 78, 0.8); }

HTML: <p style="color:#263E4E">Text here</p> · <div style="background-color:#263E4E">Div content here</div>

Shades of #263E4E

Tints of #263E4E

Tones of #263E4E

Color harmonies

Complementary — #4F3727:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #263E4E: #FFFFFF.

How #263E4E 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 #263E4E 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

← #263E4D  ·  #263E4F →

Frequently asked questions

What color is #263E4E?

#263E4E is Deep Muted Blue, a blue color (RGB 38, 62, 78). Its closest standard named color is DarkSlateGray.

What is the RGB and HSL of #263E4E?

#263E4E is RGB 38, 62, 78 — HSL 204°, 34%, 23% — CMYK 51%, 21%, 0%, 69%.

What colors go with #263E4E?

Its complement is #4F3727; analogous partners are #274F4B and #272B4F. It also appears in 6+ palettes in our collection.

Can I use #263E4E for text?

White text on #263E4E has a contrast ratio of 11.16:1 (passes WCAG AA); black text gives 1.88:1.