#129189 is a mid-toned, cool cyan. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #129189 works with other colors. Named schemes with #129189 in its natural role, and a note on why the supporting colors balance it.
Dark Cyan opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Dark Cyan plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Dark Cyan 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.
Dark Cyan sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Dark Cyan 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 Dark Cyan carrying the quiet middle.
How #129189 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 #129189 at work across the surfaces designers actually ship.
:root {
--color-base: #129189;
--color-base-rgb: 18 145 137;
--color-base-oklch: oklch(59.3% 0.100 187.8);
--color-50: #F1FEFD;
--color-100: #DAFBF9;
--color-200: #B6F6F2;
--color-300: #85EAE3;
--color-400: #58DAD1;
--color-500: #36BFB6;
--color-600: #30918B;
--color-700: #286763;
--color-800: #1E4341;
--color-900: #142928;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
dark-cyan: {
50: '#F1FEFD',
100: '#DAFBF9',
200: '#B6F6F2',
300: '#85EAE3',
400: '#58DAD1',
500: '#36BFB6',
600: '#30918B',
700: '#286763',
800: '#1E4341',
900: '#142928',
},
}
$base: #129189; $base-ink: #141310; $base-50: #F1FEFD; $base-100: #DAFBF9; $base-200: #B6F6F2; $base-300: #85EAE3; $base-400: #58DAD1; $base-500: #36BFB6; $base-600: #30918B; $base-700: #286763; $base-800: #1E4341; $base-900: #142928; $base-hover: #0E746D; $base-subtle: #ACEAE6;
{
"color": {
"base": {
"value": "#129189",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F1FEFD",
"type": "color"
},
"100": {
"value": "#DAFBF9",
"type": "color"
},
"200": {
"value": "#B6F6F2",
"type": "color"
},
"300": {
"value": "#85EAE3",
"type": "color"
},
"400": {
"value": "#58DAD1",
"type": "color"
},
"500": {
"value": "#36BFB6",
"type": "color"
},
"600": {
"value": "#30918B",
"type": "color"
},
"700": {
"value": "#286763",
"type": "color"
},
"800": {
"value": "#1E4341",
"type": "color"
},
"900": {
"value": "#142928",
"type": "color"
}
}
}
}