#309986 is a mid-toned, cool cyan. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #309986 works with other colors. Named schemes with #309986 in its natural role, and a note on why the supporting colors balance it.
Persian Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Persian 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.
Persian 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.
Persian Green sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Persian 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 Persian Green carrying the quiet middle.
How #309986 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 #309986 at work across the surfaces designers actually ship.
:root {
--color-base: #309986;
--color-base-rgb: 48 153 134;
--color-base-oklch: oklch(61.9% 0.099 178.3);
--color-50: #F3FCFA;
--color-100: #DFF6F2;
--color-200: #C1EBE4;
--color-300: #96D9CD;
--color-400: #6EC4B4;
--color-500: #4DA897;
--color-600: #418175;
--color-700: #325C55;
--color-800: #243D38;
--color-900: #182623;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
persian-green: {
50: '#F3FCFA',
100: '#DFF6F2',
200: '#C1EBE4',
300: '#96D9CD',
400: '#6EC4B4',
500: '#4DA897',
600: '#418175',
700: '#325C55',
800: '#243D38',
900: '#182623',
},
}
$base: #309986; $base-ink: #141310; $base-50: #F3FCFA; $base-100: #DFF6F2; $base-200: #C1EBE4; $base-300: #96D9CD; $base-400: #6EC4B4; $base-500: #4DA897; $base-600: #418175; $base-700: #325C55; $base-800: #243D38; $base-900: #182623; $base-hover: #26796A; $base-subtle: #BEE3DC;
{
"color": {
"base": {
"value": "#309986",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3FCFA",
"type": "color"
},
"100": {
"value": "#DFF6F2",
"type": "color"
},
"200": {
"value": "#C1EBE4",
"type": "color"
},
"300": {
"value": "#96D9CD",
"type": "color"
},
"400": {
"value": "#6EC4B4",
"type": "color"
},
"500": {
"value": "#4DA897",
"type": "color"
},
"600": {
"value": "#418175",
"type": "color"
},
"700": {
"value": "#325C55",
"type": "color"
},
"800": {
"value": "#243D38",
"type": "color"
},
"900": {
"value": "#182623",
"type": "color"
}
}
}
}