Palettes / Colors / #2D577B

#2D577B — Muted Blue

#2D577B 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 #2D577B 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.

#2D577B 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 #7B522D; it also sits naturally between #2D7B78 and #2D307B. 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 34% · Blue 48%

Cyan 63% · Magenta 29% · Yellow 0% · Key 52%

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

Previews

CSS code for #2D577B

.text { color: #2D577B; }
.background { background-color: #2D577B; }
.border { border: 3px solid #2D577B; }
.text-rgb { color: rgb(45, 87, 123); }
.text-hsl { color: hsl(208, 46%, 33%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #2D577B; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(45, 87, 123, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #2D577B; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(45, 87, 123, 0.8); }

HTML: <p style="color:#2D577B">Text here</p> · <div style="background-color:#2D577B">Div content here</div>

Shades of #2D577B

Tints of #2D577B

Tones of #2D577B

Color harmonies

Complementary — #7B522D:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #2D577B: #FFFFFF.

Semi-transparent (opacity) text on #2D577B

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 #2D577B 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 #2D577B 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

← #2D577A  ·  #2D577C →

Frequently asked questions

What color is #2D577B?

#2D577B is Muted Blue, a blue color (RGB 45, 87, 123). Its closest standard named color is DarkSlateBlue.

What is the RGB and HSL of #2D577B?

#2D577B is RGB 45, 87, 123 — HSL 208°, 46%, 33% — CMYK 63%, 29%, 0%, 52%.

What colors go with #2D577B?

Its complement is #7B522D; analogous partners are #2D7B78 and #2D307B. It also appears in 6+ palettes in our collection.

Can I use #2D577B for text?

White text on #2D577B has a contrast ratio of 7.61:1 (passes WCAG AA); black text gives 2.76:1.