Palettes / Colors / #348FCB

#348FCB — Blue

#348FCB is a blue color we call 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 #348FCB 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.

#348FCB 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 #CB7034; it also sits naturally between #34CBBC and #3443CB. 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 20% · Green 56% · Blue 80%

Cyan 74% · Magenta 30% · Yellow 0% · Key 20%

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

Previews

CSS code for #348FCB

.text { color: #348FCB; }
.background { background-color: #348FCB; }
.border { border: 3px solid #348FCB; }
.text-rgb { color: rgb(52, 143, 203); }
.text-hsl { color: hsl(204, 59%, 50%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #348FCB; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(52, 143, 203, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #348FCB; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(52, 143, 203, 0.8); }

HTML: <p style="color:#348FCB">Text here</p> · <div style="background-color:#348FCB">Div content here</div>

Shades of #348FCB

Tints of #348FCB

Tones of #348FCB

Color harmonies

Complementary — #CB7034:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #348FCB: #000000.

Semi-transparent (opacity) text on #348FCB

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 #348FCB 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 #348FCB 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

← #348FCA  ·  #348FCC →

Frequently asked questions

What color is #348FCB?

#348FCB is Blue, a blue color (RGB 52, 143, 203). Its closest standard named color is SteelBlue.

What is the RGB and HSL of #348FCB?

#348FCB is RGB 52, 143, 203 — HSL 204°, 59%, 50% — CMYK 74%, 30%, 0%, 20%.

What colors go with #348FCB?

Its complement is #CB7034; analogous partners are #34CBBC and #3443CB. It also appears in 6+ palettes in our collection.

Can I use #348FCB for text?

Black text on #348FCB has a contrast ratio of 5.94:1 (passes WCAG AA); white text gives 3.54:1.