#128503 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 #128503 works with other colors. Named schemes with #128503 in its natural role, and a note on why the supporting colors balance it.
Green leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.
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.
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.
Green sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
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 Green carrying the quiet middle.
How #128503 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 #128503 at work across the surfaces designers actually ship.
:root {
--color-base: #128503;
--color-base-rgb: 18 133 3;
--color-base-oklch: oklch(53.6% 0.178 141.9);
--color-50: #F2FEF0;
--color-100: #DCFDD8;
--color-200: #B9FCB1;
--color-300: #88F67A;
--color-400: #5CE84A;
--color-500: #3ACF26;
--color-600: #339D25;
--color-700: #2A6E21;
--color-800: #1F4819;
--color-900: #152C12;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
green: {
50: '#F2FEF0',
100: '#DCFDD8',
200: '#B9FCB1',
300: '#88F67A',
400: '#5CE84A',
500: '#3ACF26',
600: '#339D25',
700: '#2A6E21',
800: '#1F4819',
900: '#152C12',
},
}
$base: #128503; $base-ink: #FFFFFF; $base-50: #F2FEF0; $base-100: #DCFDD8; $base-200: #B9FCB1; $base-300: #88F67A; $base-400: #5CE84A; $base-500: #3ACF26; $base-600: #339D25; $base-700: #2A6E21; $base-800: #1F4819; $base-900: #152C12; $base-hover: #0F6C02; $base-subtle: #A8F09E;
{
"color": {
"base": {
"value": "#128503",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F2FEF0",
"type": "color"
},
"100": {
"value": "#DCFDD8",
"type": "color"
},
"200": {
"value": "#B9FCB1",
"type": "color"
},
"300": {
"value": "#88F67A",
"type": "color"
},
"400": {
"value": "#5CE84A",
"type": "color"
},
"500": {
"value": "#3ACF26",
"type": "color"
},
"600": {
"value": "#339D25",
"type": "color"
},
"700": {
"value": "#2A6E21",
"type": "color"
},
"800": {
"value": "#1F4819",
"type": "color"
},
"900": {
"value": "#152C12",
"type": "color"
}
}
}
}