#178A15 is a mid-toned, temperate green. On the Color Lab it reads organic and grounded. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #178A15 works with other colors. Named schemes with #178A15 in its natural role, and a note on why the supporting colors balance it.
Forest Green leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.
Forest Green plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Forest Green anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.
Forest Green sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Forest 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 Forest Green carrying the quiet middle.
How #178A15 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 #178A15 at work across the surfaces designers actually ship.
:root {
--color-base: #178A15;
--color-base-rgb: 23 138 21;
--color-base-oklch: oklch(55.2% 0.177 142.6);
--color-50: #F1FEF1;
--color-100: #DBFBDB;
--color-200: #B9F4B8;
--color-300: #89E788;
--color-400: #5ED65C;
--color-500: #3BBC39;
--color-600: #348F33;
--color-700: #2B652A;
--color-800: #1F421F;
--color-900: #152915;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
forest-green: {
50: '#F1FEF1',
100: '#DBFBDB',
200: '#B9F4B8',
300: '#89E788',
400: '#5ED65C',
500: '#3BBC39',
600: '#348F33',
700: '#2B652A',
800: '#1F421F',
900: '#152915',
},
}
$base: #178A15; $base-ink: #141310; $base-50: #F1FEF1; $base-100: #DBFBDB; $base-200: #B9F4B8; $base-300: #89E788; $base-400: #5ED65C; $base-500: #3BBC39; $base-600: #348F33; $base-700: #2B652A; $base-800: #1F421F; $base-900: #152915; $base-hover: #126E10; $base-subtle: #AEE8AD;
{
"color": {
"base": {
"value": "#178A15",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F1FEF1",
"type": "color"
},
"100": {
"value": "#DBFBDB",
"type": "color"
},
"200": {
"value": "#B9F4B8",
"type": "color"
},
"300": {
"value": "#89E788",
"type": "color"
},
"400": {
"value": "#5ED65C",
"type": "color"
},
"500": {
"value": "#3BBC39",
"type": "color"
},
"600": {
"value": "#348F33",
"type": "color"
},
"700": {
"value": "#2B652A",
"type": "color"
},
"800": {
"value": "#1F421F",
"type": "color"
},
"900": {
"value": "#152915",
"type": "color"
}
}
}
}