Palettes / Colors / #383DA3

#383DA3 — Muted Blue

#383DA3 is a blue color we call Muted Blue, closest to the named color DarkSlateBlue (#483D8B). It belongs to the blue family.

Color name

Closest CSS keyword: darkslateblue (#483D8B) — not an exact match. CSS darkslateblue gives you #483D8B, a different color; use #383DA3 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.

#383DA3 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 #A39E38; it also sits naturally between #3873A3 and #6838A3. 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 22% · Green 24% · Blue 64%

Cyan 66% · Magenta 63% · Yellow 0% · Key 36%

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

Previews

CSS code for #383DA3

.text { color: #383DA3; }
.background { background-color: #383DA3; }
.border { border: 3px solid #383DA3; }
.text-rgb { color: rgb(56, 61, 163); }
.text-hsl { color: hsl(237, 49%, 43%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #383DA3; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(56, 61, 163, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #383DA3; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(56, 61, 163, 0.8); }

HTML: <p style="color:#383DA3">Text here</p> · <div style="background-color:#383DA3">Div content here</div>

Shades of #383DA3

Tints of #383DA3

Tones of #383DA3

Color harmonies

Complementary — #A39E38:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #383DA3: #FFFFFF.

Semi-transparent (opacity) text on #383DA3

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 #383DA3 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 #383DA3 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

← #383DA2  ·  #383DA4 →

Frequently asked questions

What color is #383DA3?

#383DA3 is Muted Blue, a blue color (RGB 56, 61, 163). Its closest standard named color is DarkSlateBlue.

What is the RGB and HSL of #383DA3?

#383DA3 is RGB 56, 61, 163 — HSL 237°, 49%, 43% — CMYK 66%, 63%, 0%, 36%.

What colors go with #383DA3?

Its complement is #A39E38; analogous partners are #3873A3 and #6838A3. It also appears in 6+ palettes in our collection.

Can I use #383DA3 for text?

White text on #383DA3 has a contrast ratio of 8.88:1 (passes WCAG AA); black text gives 2.36:1.