Palettes / Colors / #3FCF66

#3FCF66 — Green

#3FCF66 is a green color we call Green, closest to the named color SeaGreen (#2E8B57). It belongs to the green family.

Color name

Closest CSS keyword: seagreen (#2E8B57) — not an exact match. CSS seagreen gives you #2E8B57, a different color; use #3FCF66 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.

#3FCF66 is a warm-leaning green color associated with growth, calm and balance. It is saturated enough to be the accent — buttons, highlights and calls to action — while neutrals do the quiet work around it.

Its strongest partner is its complement #CF3FA9; it also sits naturally between #61CF3F and #3FCFAE. 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 81% · Blue 40%

Cyan 70% · Magenta 0% · Yellow 51% · Key 19%

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

Previews

CSS code for #3FCF66

.text { color: #3FCF66; }
.background { background-color: #3FCF66; }
.border { border: 3px solid #3FCF66; }
.text-rgb { color: rgb(63, 207, 102); }
.text-hsl { color: hsl(136, 60%, 53%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #3FCF66; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(63, 207, 102, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #3FCF66; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(63, 207, 102, 0.8); }

HTML: <p style="color:#3FCF66">Text here</p> · <div style="background-color:#3FCF66">Div content here</div>

Shades of #3FCF66

Tints of #3FCF66

Tones of #3FCF66

Color harmonies

Complementary — #CF3FA9:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #3FCF66: #000000.

Semi-transparent (opacity) text on #3FCF66

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 #3FCF66 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 #3FCF66 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

← #3FCF65  ·  #3FCF67 →

Frequently asked questions

What color is #3FCF66?

#3FCF66 is Green, a green color (RGB 63, 207, 102). Its closest standard named color is SeaGreen.

What is the RGB and HSL of #3FCF66?

#3FCF66 is RGB 63, 207, 102 — HSL 136°, 60%, 53% — CMYK 70%, 0%, 51%, 19%.

What colors go with #3FCF66?

Its complement is #CF3FA9; analogous partners are #61CF3F and #3FCFAE. It also appears in 6+ palettes in our collection.

Can I use #3FCF66 for text?

Black text on #3FCF66 has a contrast ratio of 10.33:1 (passes WCAG AA); white text gives 2.03:1.