#065646 is a mid-toned, cool teal. On the Color Lab it reads quietly premium, restrained and easy to live with. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #065646 works with other colors. Named schemes with #065646 in its natural role, and a note on why the supporting colors balance it.
Castleton Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Castleton Green keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Castleton 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.
Castleton 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.
Castleton 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 Castleton Green carrying the quiet middle.
How #065646 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 #065646 at work across the surfaces designers actually ship.
:root {
--color-base: #065646;
--color-base-rgb: 6 86 70;
--color-base-oklch: oklch(40.5% 0.075 174.0);
--color-50: #F0FEFC;
--color-100: #D8FDF6;
--color-200: #B3FAEB;
--color-300: #7FF0D9;
--color-400: #51E1C4;
--color-500: #2EC7A8;
--color-600: #2B9781;
--color-700: #246B5C;
--color-800: #1C453D;
--color-900: #132A26;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
castleton-green: {
50: '#F0FEFC',
100: '#D8FDF6',
200: '#B3FAEB',
300: '#7FF0D9',
400: '#51E1C4',
500: '#2EC7A8',
600: '#2B9781',
700: '#246B5C',
800: '#1C453D',
900: '#132A26',
},
}
$base: #065646; $base-ink: #FFFFFF; $base-50: #F0FEFC; $base-100: #D8FDF6; $base-200: #B3FAEB; $base-300: #7FF0D9; $base-400: #51E1C4; $base-500: #2EC7A8; $base-600: #2B9781; $base-700: #246B5C; $base-800: #1C453D; $base-900: #132A26; $base-hover: #054538; $base-subtle: #97EAD9;
{
"color": {
"base": {
"value": "#065646",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F0FEFC",
"type": "color"
},
"100": {
"value": "#D8FDF6",
"type": "color"
},
"200": {
"value": "#B3FAEB",
"type": "color"
},
"300": {
"value": "#7FF0D9",
"type": "color"
},
"400": {
"value": "#51E1C4",
"type": "color"
},
"500": {
"value": "#2EC7A8",
"type": "color"
},
"600": {
"value": "#2B9781",
"type": "color"
},
"700": {
"value": "#246B5C",
"type": "color"
},
"800": {
"value": "#1C453D",
"type": "color"
},
"900": {
"value": "#132A26",
"type": "color"
}
}
}
}