What color is #3FD99E?

#3FD99E is a medium teal-green. In RGB it is rgb(63, 217, 158), and in HSL hsl(157, 67%, 55%).

Is #3FD99E accessible as text?

On white, #3FD99E has a contrast ratio of 1.81:1 (fails WCAG AA for body text); on black it is 11.63:1 (passes). For text placed on #3FD99E, use black for the best readability.

What is the closest Tailwind color to #3FD99E?

The nearest Tailwind CSS token is emerald-400 (#00D492).

What colors go well with #3FD99E?

#3FD99E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #D93F7A. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3FD99E below.

Is #3FD99E good for buttons?

#3FD99E works well for buttons and highlights, but use black text on #3FD99E — white text only reaches 1.81:1, below the 4.5:1 needed for normal-size labels.

Is #3FD99E the same as CSS mediumaquamarine?

No — #3FD99E is not the CSS named color mediumaquamarine, but mediumaquamarine (#66CDAA) is the closest CSS named color.

#3FD99E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3FD99E

Not just a swatch — here's how #3FD99E works with other colors. Named schemes with #3FD99E in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #3FD99E Secondary #496C3E Accent #AB6D00 Surface #EEEAD6 Anchor #3C2F20

Medium Aquamarine leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.

Coastal Morning Lead · 5 colors

Lead #3FD99E Accent #A7C4BB Surface #E1D9BE Secondary #9AA0A0 Anchor #1B3648

Medium Aquamarine opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Nordic Calm Accent · 5 colors

Accent #3FD99E Secondary #ADB4B7 Surface #F1F2F0 Support #7895A3 Anchor #2D3236

Medium Aquamarine keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Warm Autumn Interior Dominant · 5 colors

Dominant #3FD99E Secondary #AB6D00 Accent #667C4E Surface #F1EDDD Anchor #392B1E

This palette keeps Medium Aquamarine as the dominant warm neutral, balanced by muted terracotta and olive earth tones and grounded by a deep espresso anchor.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #3FD99E Secondary #C9F4DE Support #989286 Ink #17140F

Medium Aquamarine is the single accent in this high-contrast editorial system — set on near-white paper against near-black ink, with a warm grey and a desaturated tint of Medium Aquamarine carrying the quiet middle.

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Color Lab

How #3FD99E actually behaves in design work — read from its OKLCH lightness, chroma and hue, not just its raw numbers. Ten signals to help you decide where this color earns its place.

Warmth 32/100

Cool

Reads cool and recessive — calming, technical, good for trust-led UI.

Softness 56/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 22/100

Low

Airy and open — recedes, leaves the composition light.

Naturalness 59/100

Moderate

Organic, earthy character — at home in wellness, food and craft brands.

Vintage feel 30/100

Low

A faint retro warmth without tipping into sepia.

Luxury 27/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 59/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 30/100

Low

Workable accent with care around contrast.

Surface fit 35/100

Low

Usable as a tinted surface in measured doses.

Print safety 70/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #3FD99E

For UI

For branding

For interior

For fashion

People also use #3FD99E with

Malachite Lagoon Blue Razzmatazz Platinum Dark Slate Gray

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AAA

Body text Do not use for body copy on light surfaces. Avoid

Large display Only on dark surfaces. Avoid

Background Pair with #141310 text at 10.3:1. Use

Subtle surface Use #DDF3EB for cards and hover fills. Tint 80

Avoid beside #3FD9D1 — the hue gap is too small to read as intentional. Clash

In real applications

Not a swatch to memorise — a color to build with. Here is #3FD99E at work across the surfaces designers actually ship.

Website / UI

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Build faster.

A working theme, generated in seconds.

Dashboard

Revenue

$48.2k ▲ 12%

Brand

AVELINE

Studio

Poster

Nov 14 · 8PM

NIGHT
MARKET

Packaging

BLOOM

Botanical Wash

250 ml

Interior

Every model

Export

:root {
  --color-base: #3FD99E;
  --color-base-rgb: 63 217 158;
  --color-base-oklch: oklch(79.1% 0.153 162.8);
  --color-50: #F2FDF9;
  --color-100: #DCF9EE;
  --color-200: #BBF1DD;
  --color-300: #8CE3C2;
  --color-400: #62D0A6;
  --color-500: #3FB588;
  --color-600: #378B6B;
  --color-700: #2C624E;
  --color-800: #204134;
  --color-900: #162821;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  medium-aquamarine: {
    50: '#F2FDF9',
    100: '#DCF9EE',
    200: '#BBF1DD',
    300: '#8CE3C2',
    400: '#62D0A6',
    500: '#3FB588',
    600: '#378B6B',
    700: '#2C624E',
    800: '#204134',
    900: '#162821',
  },
}

$base: #3FD99E;
$base-ink: #141310;
$base-50: #F2FDF9;
$base-100: #DCF9EE;
$base-200: #BBF1DD;
$base-300: #8CE3C2;
$base-400: #62D0A6;
$base-500: #3FB588;
$base-600: #378B6B;
$base-700: #2C624E;
$base-800: #204134;
$base-900: #162821;
$base-hover: #25BB82;
$base-subtle: #CBEEE1;

{
    "color": {
        "base": {
            "value": "#3FD99E",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FDF9",
                "type": "color"
            },
            "100": {
                "value": "#DCF9EE",
                "type": "color"
            },
            "200": {
                "value": "#BBF1DD",
                "type": "color"
            },
            "300": {
                "value": "#8CE3C2",
                "type": "color"
            },
            "400": {
                "value": "#62D0A6",
                "type": "color"
            },
            "500": {
                "value": "#3FB588",
                "type": "color"
            },
            "600": {
                "value": "#378B6B",
                "type": "color"
            },
            "700": {
                "value": "#2C624E",
                "type": "color"
            },
            "800": {
                "value": "#204134",
                "type": "color"
            },
            "900": {
                "value": "#162821",
                "type": "color"
            }
        }
    }
}

Palettes built on #3FD99E

Color Lab

Pairs with #3FD99E

UI roles & guardrails

In real applications

Scales

Every model

Export