#4ECC55 is a mid-toned, temperate green. On the Color Lab it reads bold and ownable. It sits well as a supporting tone.
Not just a swatch — here's how #4ECC55 works with other colors. Named schemes with #4ECC55 in its natural role, and a note on why the supporting colors balance it.
Shamrock is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Shamrock.
Shamrock 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.
Shamrock leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.
Shamrock 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 Shamrock carrying the quiet middle.
Shamrock opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
How #4ECC55 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.
Not a swatch to memorise — a color to build with. Here is #4ECC55 at work across the surfaces designers actually ship.
:root {
--color-base: #4ECC55;
--color-base-rgb: 78 204 85;
--color-base-oklch: oklch(74.9% 0.195 144.2);
--color-50: #F3FCF3;
--color-100: #DFF6E0;
--color-200: #C0EDC2;
--color-300: #94DB98;
--color-400: #6BC770;
--color-500: #4AAB4F;
--color-600: #3F8342;
--color-700: #315E33;
--color-800: #233E25;
--color-900: #172618;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
shamrock: {
50: '#F3FCF3',
100: '#DFF6E0',
200: '#C0EDC2',
300: '#94DB98',
400: '#6BC770',
500: '#4AAB4F',
600: '#3F8342',
700: '#315E33',
800: '#233E25',
900: '#172618',
},
}
$base: #4ECC55; $base-ink: #141310; $base-50: #F3FCF3; $base-100: #DFF6E0; $base-200: #C0EDC2; $base-300: #94DB98; $base-400: #6BC770; $base-500: #4AAB4F; $base-600: #3F8342; $base-700: #315E33; $base-800: #233E25; $base-900: #172618; $base-hover: #32AE39; $base-subtle: #CEEBD0;
{
"color": {
"base": {
"value": "#4ECC55",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3FCF3",
"type": "color"
},
"100": {
"value": "#DFF6E0",
"type": "color"
},
"200": {
"value": "#C0EDC2",
"type": "color"
},
"300": {
"value": "#94DB98",
"type": "color"
},
"400": {
"value": "#6BC770",
"type": "color"
},
"500": {
"value": "#4AAB4F",
"type": "color"
},
"600": {
"value": "#3F8342",
"type": "color"
},
"700": {
"value": "#315E33",
"type": "color"
},
"800": {
"value": "#233E25",
"type": "color"
},
"900": {
"value": "#172618",
"type": "color"
}
}
}
}