#3FCA64 is a mid-toned, temperate teal-green. On the Color Lab it reads bold and ownable. It sits well as a supporting tone.
Not just a swatch — here's how #3FCA64 works with other colors. Named schemes with #3FCA64 in its natural role, and a note on why the supporting colors balance it.
Shamrock leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.
Shamrock keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
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 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 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.
How #3FCA64 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 #3FCA64 at work across the surfaces designers actually ship.
:root {
--color-base: #3FCA64;
--color-base-rgb: 63 202 100;
--color-base-oklch: oklch(74.2% 0.185 148.4);
--color-50: #F3FCF5;
--color-100: #DEF7E5;
--color-200: #BFEDCB;
--color-300: #93DCA6;
--color-400: #6AC883;
--color-500: #48AD63;
--color-600: #3D8450;
--color-700: #305E3D;
--color-800: #233E2A;
--color-900: #17261B;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
shamrock: {
50: '#F3FCF5',
100: '#DEF7E5',
200: '#BFEDCB',
300: '#93DCA6',
400: '#6AC883',
500: '#48AD63',
600: '#3D8450',
700: '#305E3D',
800: '#233E2A',
900: '#17261B',
},
}
$base: #3FCA64; $base-ink: #141310; $base-50: #F3FCF5; $base-100: #DEF7E5; $base-200: #BFEDCB; $base-300: #93DCA6; $base-400: #6AC883; $base-500: #48AD63; $base-600: #3D8450; $base-700: #305E3D; $base-800: #233E2A; $base-900: #17261B; $base-hover: #2EA74E; $base-subtle: #CAEAD3;
{
"color": {
"base": {
"value": "#3FCA64",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3FCF5",
"type": "color"
},
"100": {
"value": "#DEF7E5",
"type": "color"
},
"200": {
"value": "#BFEDCB",
"type": "color"
},
"300": {
"value": "#93DCA6",
"type": "color"
},
"400": {
"value": "#6AC883",
"type": "color"
},
"500": {
"value": "#48AD63",
"type": "color"
},
"600": {
"value": "#3D8450",
"type": "color"
},
"700": {
"value": "#305E3D",
"type": "color"
},
"800": {
"value": "#233E2A",
"type": "color"
},
"900": {
"value": "#17261B",
"type": "color"
}
}
}
}