Palettes / Colors / #558FBE

#558FBE — Muted Blue

#558FBE is a blue color we call Muted Blue, closest to the named color SteelBlue (#4682B4). It belongs to the blue family.

Color name

Closest CSS keyword: steelblue (#4682B4) — not an exact match. CSS steelblue gives you #4682B4, a different color; use #558FBE 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.

#558FBE 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 #BE8455; it also sits naturally between #55BEB9 and #555ABE. 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 33% · Green 56% · Blue 75%

Cyan 55% · Magenta 25% · Yellow 0% · Key 25%

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

Previews

CSS code for #558FBE

.text { color: #558FBE; }
.background { background-color: #558FBE; }
.border { border: 3px solid #558FBE; }
.text-rgb { color: rgb(85, 143, 190); }
.text-hsl { color: hsl(207, 45%, 54%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #558FBE; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(85, 143, 190, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #558FBE; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(85, 143, 190, 0.8); }

HTML: <p style="color:#558FBE">Text here</p> · <div style="background-color:#558FBE">Div content here</div>

Shades of #558FBE

Tints of #558FBE

Tones of #558FBE

Color harmonies

Complementary — #BE8455:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #558FBE: #000000.

Semi-transparent (opacity) text on #558FBE

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 #558FBE 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 #558FBE 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

← #558FBD  ·  #558FBF →

Frequently asked questions

What color is #558FBE?

#558FBE is Muted Blue, a blue color (RGB 85, 143, 190). Its closest standard named color is SteelBlue.

What is the RGB and HSL of #558FBE?

#558FBE is RGB 85, 143, 190 — HSL 207°, 45%, 54% — CMYK 55%, 25%, 0%, 25%.

What colors go with #558FBE?

Its complement is #BE8455; analogous partners are #55BEB9 and #555ABE. It also appears in 6+ palettes in our collection.

Can I use #558FBE for text?

Black text on #558FBE has a contrast ratio of 6.06:1 (passes WCAG AA); white text gives 3.47:1.