#39C021 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 #39C021 works with other colors. Named schemes with #39C021 in its natural role, and a note on why the supporting colors balance it.
Kelly 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 Kelly Green.
Kelly 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.
Kelly Green leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.
Kelly 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 Kelly Green carrying the quiet middle.
Kelly Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
How #39C021 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 #39C021 at work across the surfaces designers actually ship.
:root {
--color-base: #39C021;
--color-base-rgb: 57 192 33;
--color-base-oklch: oklch(70.8% 0.221 141.2);
--color-50: #F3FDF1;
--color-100: #E0FADB;
--color-200: #C2F3B9;
--color-300: #98E58A;
--color-400: #70D45E;
--color-500: #4FB93C;
--color-600: #428D35;
--color-700: #33642B;
--color-800: #25421F;
--color-900: #182815;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
kelly-green: {
50: '#F3FDF1',
100: '#E0FADB',
200: '#C2F3B9',
300: '#98E58A',
400: '#70D45E',
500: '#4FB93C',
600: '#428D35',
700: '#33642B',
800: '#25421F',
900: '#182815',
},
}
$base: #39C021; $base-ink: #141310; $base-50: #F3FDF1; $base-100: #E0FADB; $base-200: #C2F3B9; $base-300: #98E58A; $base-400: #70D45E; $base-500: #4FB93C; $base-600: #428D35; $base-700: #33642B; $base-800: #25421F; $base-900: #182815; $base-hover: #2D991A; $base-subtle: #C4EBBD;
{
"color": {
"base": {
"value": "#39C021",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3FDF1",
"type": "color"
},
"100": {
"value": "#E0FADB",
"type": "color"
},
"200": {
"value": "#C2F3B9",
"type": "color"
},
"300": {
"value": "#98E58A",
"type": "color"
},
"400": {
"value": "#70D45E",
"type": "color"
},
"500": {
"value": "#4FB93C",
"type": "color"
},
"600": {
"value": "#428D35",
"type": "color"
},
"700": {
"value": "#33642B",
"type": "color"
},
"800": {
"value": "#25421F",
"type": "color"
},
"900": {
"value": "#182815",
"type": "color"
}
}
}
}