#129778 is a mid-toned, cool teal. 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 #129778 works with other colors. Named schemes with #129778 in its natural role, and a note on why the supporting colors balance it.
Shamrock Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Shamrock 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.
Shamrock 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.
Shamrock Green sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Shamrock 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 Shamrock Green carrying the quiet middle.
How #129778 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 #129778 at work across the surfaces designers actually ship.
:root {
--color-base: #129778;
--color-base-rgb: 18 151 120;
--color-base-oklch: oklch(60.4% 0.115 171.0);
--color-50: #F1FEFB;
--color-100: #DAFCF4;
--color-200: #B6F6E7;
--color-300: #85EBD3;
--color-400: #58DABC;
--color-500: #35C09F;
--color-600: #30927B;
--color-700: #286758;
--color-800: #1D433B;
--color-900: #142924;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
shamrock-green: {
50: '#F1FEFB',
100: '#DAFCF4',
200: '#B6F6E7',
300: '#85EBD3',
400: '#58DABC',
500: '#35C09F',
600: '#30927B',
700: '#286758',
800: '#1D433B',
900: '#142924',
},
}
$base: #129778; $base-ink: #141310; $base-50: #F1FEFB; $base-100: #DAFCF4; $base-200: #B6F6E7; $base-300: #85EBD3; $base-400: #58DABC; $base-500: #35C09F; $base-600: #30927B; $base-700: #286758; $base-800: #1D433B; $base-900: #142924; $base-hover: #0E7960; $base-subtle: #ADEBDC;
{
"color": {
"base": {
"value": "#129778",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F1FEFB",
"type": "color"
},
"100": {
"value": "#DAFCF4",
"type": "color"
},
"200": {
"value": "#B6F6E7",
"type": "color"
},
"300": {
"value": "#85EBD3",
"type": "color"
},
"400": {
"value": "#58DABC",
"type": "color"
},
"500": {
"value": "#35C09F",
"type": "color"
},
"600": {
"value": "#30927B",
"type": "color"
},
"700": {
"value": "#286758",
"type": "color"
},
"800": {
"value": "#1D433B",
"type": "color"
},
"900": {
"value": "#142924",
"type": "color"
}
}
}
}