What color is #51EC6D?

#51EC6D is a light, vivid green. In RGB it is rgb(81, 236, 109), and in HSL hsl(131, 80%, 62%).

Is #51EC6D accessible as text?

On white, #51EC6D has a contrast ratio of 1.55:1 (fails WCAG AA for body text); on black it is 13.57:1 (passes). For text placed on #51EC6D, use black for the best readability.

What is the closest Tailwind color to #51EC6D?

The nearest Tailwind CSS token is green-400 (#05DF72).

What colors go well with #51EC6D?

#51EC6D pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #EC51CF. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #51EC6D below.

Is #51EC6D good for buttons?

#51EC6D works well for buttons and highlights, but use black text on #51EC6D — white text only reaches 1.55:1, below the 4.5:1 needed for normal-size labels.

Is #51EC6D the same as CSS springgreen?

No — #51EC6D is not the CSS named color springgreen, but springgreen (#00FF7F) is the closest CSS named color.

#51EC6D Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #51EC6D

Not just a swatch — here's how #51EC6D works with other colors. Named schemes with #51EC6D in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

Accent #51EC6D Secondary #ADB4B7 Surface #F1F2F0 Support #7895A3 Anchor #2D3236

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

Tech Product Signal · 5 colors

Signal #51EC6D Surface #13161A Highlight #F4F6F8 Secondary #576770 Accent #8FFF9F

Spring Green is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Spring Green.

Botanical Studio Lead · 5 colors

Lead #51EC6D Secondary #4C6B3C Accent #AD6C00 Surface #EEEAD6 Anchor #3C2F20

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

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #51EC6D Secondary #D7FFD9 Support #989286 Ink #17140F

Spring Green 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 Spring Green carrying the quiet middle.

Japanese Sand Base · 5 colors

Base #51EC6D Surface #EEE9DC Highlight #F5F1E7 Secondary #B6B09F Ink #2B2723

Spring Green sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Build a working theme in the generator →

Color Lab

How #51EC6D 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 44/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 48/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 18/100

Very low

Airy and open — recedes, leaves the composition light.

Naturalness 24/100

Low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 14/100

Very low

Clean and current — no dusty, aged cast.

Luxury 21/100

Low

Playful and accessible rather than exclusive.

Brand distinctiveness 83/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 16/100

Very low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 39/100

Low

Usable as a tinted surface in measured doses.

Print safety 53/100

Moderate

Prints close, with a slight loss of vibrancy.

Pairs with #51EC6D

For UI

For branding

For interior

For fashion

People also use #51EC6D with

Light Green Turquoise Orchid Platinum Hunter Green

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 12.0:1. Use

Subtle surface Use #E0F7E5 for cards and hover fills. Tint 80

Avoid beside #51ECA1 — 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 #51EC6D at work across the surfaces designers actually ship.

Website / UI

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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: #51EC6D;
  --color-base-rgb: 81 236 109;
  --color-base-oklch: oklch(83.4% 0.214 146.5);
  --color-50: #F1FEF3;
  --color-100: #D9FCE0;
  --color-200: #B6F7C2;
  --color-300: #84EB97;
  --color-400: #57DB6F;
  --color-500: #34C14E;
  --color-600: #2F9341;
  --color-700: #276833;
  --color-800: #1D4424;
  --color-900: #142918;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  spring-green: {
    50: '#F1FEF3',
    100: '#D9FCE0',
    200: '#B6F7C2',
    300: '#84EB97',
    400: '#57DB6F',
    500: '#34C14E',
    600: '#2F9341',
    700: '#276833',
    800: '#1D4424',
    900: '#142918',
  },
}

$base: #51EC6D;
$base-ink: #141310;
$base-50: #F1FEF3;
$base-100: #D9FCE0;
$base-200: #B6F7C2;
$base-300: #84EB97;
$base-400: #57DB6F;
$base-500: #34C14E;
$base-600: #2F9341;
$base-700: #276833;
$base-800: #1D4424;
$base-900: #142918;
$base-hover: #19E43E;
$base-subtle: #D0F4D7;

{
    "color": {
        "base": {
            "value": "#51EC6D",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FEF3",
                "type": "color"
            },
            "100": {
                "value": "#D9FCE0",
                "type": "color"
            },
            "200": {
                "value": "#B6F7C2",
                "type": "color"
            },
            "300": {
                "value": "#84EB97",
                "type": "color"
            },
            "400": {
                "value": "#57DB6F",
                "type": "color"
            },
            "500": {
                "value": "#34C14E",
                "type": "color"
            },
            "600": {
                "value": "#2F9341",
                "type": "color"
            },
            "700": {
                "value": "#276833",
                "type": "color"
            },
            "800": {
                "value": "#1D4424",
                "type": "color"
            },
            "900": {
                "value": "#142918",
                "type": "color"
            }
        }
    }
}

Palettes built on #51EC6D

Color Lab

Pairs with #51EC6D

UI roles & guardrails

In real applications

Scales

Every model

Export