Palettes / Colors / #3FA3CA

#3FA3CA — Blue

#3FA3CA 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 #3FA3CA 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.

#3FA3CA 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 #CA663F; it also sits naturally between #3FCAAC and #3F5DCA. 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 64% · Blue 79%

Cyan 69% · Magenta 19% · Yellow 0% · Key 21%

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

Previews

CSS code for #3FA3CA

.text { color: #3FA3CA; }
.background { background-color: #3FA3CA; }
.border { border: 3px solid #3FA3CA; }
.text-rgb { color: rgb(63, 163, 202); }
.text-hsl { color: hsl(197, 57%, 52%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #3FA3CA; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(63, 163, 202, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #3FA3CA; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(63, 163, 202, 0.8); }

HTML: <p style="color:#3FA3CA">Text here</p> · <div style="background-color:#3FA3CA">Div content here</div>

Shades of #3FA3CA

Tints of #3FA3CA

Tones of #3FA3CA

Color harmonies

Complementary — #CA663F:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #3FA3CA: #000000.

Semi-transparent (opacity) text on #3FA3CA

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 #3FA3CA 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 #3FA3CA 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

← #3FA3C9  ·  #3FA3CB →

Frequently asked questions

What color is #3FA3CA?

#3FA3CA is Blue, a blue color (RGB 63, 163, 202). Its closest standard named color is SteelBlue.

What is the RGB and HSL of #3FA3CA?

#3FA3CA is RGB 63, 163, 202 — HSL 197°, 57%, 52% — CMYK 69%, 19%, 0%, 21%.

What colors go with #3FA3CA?

Its complement is #CA663F; analogous partners are #3FCAAC and #3F5DCA. It also appears in 6+ palettes in our collection.

Can I use #3FA3CA for text?

Black text on #3FA3CA has a contrast ratio of 7.30:1 (passes WCAG AA); white text gives 2.88:1.