Palettes / Colors / #404EA4

#404EA4 — Muted Blue

#404EA4 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 #404EA4 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.

#404EA4 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 #A59840; it also sits naturally between #4080A5 and #6540A5. 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 25% · Green 31% · Blue 64%

Cyan 61% · Magenta 52% · Yellow 0% · Key 36%

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

Previews

CSS code for #404EA4

.text { color: #404EA4; }
.background { background-color: #404EA4; }
.border { border: 3px solid #404EA4; }
.text-rgb { color: rgb(64, 78, 164); }
.text-hsl { color: hsl(232, 44%, 45%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #404EA4; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(64, 78, 164, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #404EA4; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(64, 78, 164, 0.8); }

HTML: <p style="color:#404EA4">Text here</p> · <div style="background-color:#404EA4">Div content here</div>

Shades of #404EA4

Tints of #404EA4

Tones of #404EA4

Color harmonies

Complementary — #A59840:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #404EA4: #FFFFFF.

Semi-transparent (opacity) text on #404EA4

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 #404EA4 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 #404EA4 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

← #404EA3  ·  #404EA5 →

Frequently asked questions

What color is #404EA4?

#404EA4 is Muted Blue, a blue color (RGB 64, 78, 164). Its closest standard named color is DarkSlateBlue.

What is the RGB and HSL of #404EA4?

#404EA4 is RGB 64, 78, 164 — HSL 232°, 44%, 45% — CMYK 61%, 52%, 0%, 36%.

What colors go with #404EA4?

Its complement is #A59840; analogous partners are #4080A5 and #6540A5. It also appears in 6+ palettes in our collection.

Can I use #404EA4 for text?

White text on #404EA4 has a contrast ratio of 7.38:1 (passes WCAG AA); black text gives 2.84:1.