#42E615 is a mid-toned, temperate green. On the Color Lab it reads clean and engineered, bold and ownable. It is too pale to lead as a primary accent and loses vibrancy on press.
Not just a swatch — here's how #42E615 works with other colors. Named schemes with #42E615 in its natural role, and a note on why the supporting colors balance it.
Malachite is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Malachite.
Malachite 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.
Malachite leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.
Malachite 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 Malachite carrying the quiet middle.
Malachite opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
How #42E615 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 #42E615 at work across the surfaces designers actually ship.
:root {
--color-base: #42E615;
--color-base-rgb: 66 230 21;
--color-base-oklch: oklch(80.9% 0.260 140.8);
--color-50: #F3FEF0;
--color-100: #E0FDD9;
--color-200: #C3F8B4;
--color-300: #99ED82;
--color-400: #72DE54;
--color-500: #51C331;
--color-600: #44952D;
--color-700: #346926;
--color-800: #25441C;
--color-900: #182A13;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
malachite: {
50: '#F3FEF0',
100: '#E0FDD9',
200: '#C3F8B4',
300: '#99ED82',
400: '#72DE54',
500: '#51C331',
600: '#44952D',
700: '#346926',
800: '#25441C',
900: '#182A13',
},
}
$base: #42E615; $base-ink: #141310; $base-50: #F3FEF0; $base-100: #E0FDD9; $base-200: #C3F8B4; $base-300: #99ED82; $base-400: #72DE54; $base-500: #51C331; $base-600: #44952D; $base-700: #346926; $base-800: #25441C; $base-900: #182A13; $base-hover: #35B711; $base-subtle: #CAF1BF;
{
"color": {
"base": {
"value": "#42E615",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3FEF0",
"type": "color"
},
"100": {
"value": "#E0FDD9",
"type": "color"
},
"200": {
"value": "#C3F8B4",
"type": "color"
},
"300": {
"value": "#99ED82",
"type": "color"
},
"400": {
"value": "#72DE54",
"type": "color"
},
"500": {
"value": "#51C331",
"type": "color"
},
"600": {
"value": "#44952D",
"type": "color"
},
"700": {
"value": "#346926",
"type": "color"
},
"800": {
"value": "#25441C",
"type": "color"
},
"900": {
"value": "#182A13",
"type": "color"
}
}
}
}