Palettes / Colors / #263E4F

#263E4F — Deep Muted Blue

#263E4F is a blue color we call Deep Muted Blue, closest to the named color DarkSlateGray (#2F4F4F). It belongs to the blue family.

#263E4F 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 #4F3726; it also sits naturally between #264F4C and #262A4F. 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 52% · Magenta 22% · Yellow 0% · Key 69%

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

Previews

CSS code for #263E4F

.text { color: #263E4F; }
.background { background-color: #263E4F; }
.border { border: 3px solid #263E4F; }
.text-rgb { color: rgb(38, 62, 79); }
.text-hsl { color: hsl(205, 35%, 23%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #263E4F; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(38, 62, 79, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #263E4F; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(38, 62, 79, 0.8); }

HTML: <p style="color:#263E4F">Text here</p> · <div style="background-color:#263E4F">Div content here</div>

Shades of #263E4F

Tints of #263E4F

Tones of #263E4F

Color harmonies

Complementary — #4F3726:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #263E4F: #FFFFFF.

How #263E4F 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 #263E4F

Palettes with a similar color

These palettes use a close neighbour of #263E4F 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

← #263E4E  ·  #263E50 →

Frequently asked questions

What color is #263E4F?

#263E4F is Deep Muted Blue, a blue color (RGB 38, 62, 79). Its closest standard named color is DarkSlateGray.

What is the RGB and HSL of #263E4F?

#263E4F is RGB 38, 62, 79 — HSL 205°, 35%, 23% — CMYK 52%, 22%, 0%, 69%.

What colors go with #263E4F?

Its complement is #4F3726; analogous partners are #264F4C and #262A4F. It also appears in 6+ palettes in our collection.

Can I use #263E4F for text?

White text on #263E4F has a contrast ratio of 11.14:1 (passes WCAG AA); black text gives 1.88:1.