#115D64 is a mid-toned, cool cyan-blue. On the Color Lab it reads clean and engineered, quietly premium. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #115D64 works with other colors. Named schemes with #115D64 in its natural role, and a note on why the supporting colors balance it.
Dark Slate Gray opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Dark Slate Gray keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Dark Slate Gray is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Dark Slate Gray.
Dark Slate Gray 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 Slate Gray 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 Slate Gray carrying the quiet middle.
How #115D64 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 #115D64 at work across the surfaces designers actually ship.
:root {
--color-base: #115D64;
--color-base-rgb: 17 93 100;
--color-base-oklch: oklch(43.9% 0.070 204.5);
--color-50: #F1FCFD;
--color-100: #DBF7FA;
--color-200: #B9EEF3;
--color-300: #8ADEE5;
--color-400: #5ECAD4;
--color-500: #3CAEB9;
--color-600: #35868D;
--color-700: #2B5F64;
--color-800: #1F3F42;
--color-900: #152728;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
dark-slate-gray: {
50: '#F1FCFD',
100: '#DBF7FA',
200: '#B9EEF3',
300: '#8ADEE5',
400: '#5ECAD4',
500: '#3CAEB9',
600: '#35868D',
700: '#2B5F64',
800: '#1F3F42',
900: '#152728',
},
}
$base: #115D64; $base-ink: #FFFFFF; $base-50: #F1FCFD; $base-100: #DBF7FA; $base-200: #B9EEF3; $base-300: #8ADEE5; $base-400: #5ECAD4; $base-500: #3CAEB9; $base-600: #35868D; $base-700: #2B5F64; $base-800: #1F3F42; $base-900: #152728; $base-hover: #0E4B50; $base-subtle: #A4DFE4;
{
"color": {
"base": {
"value": "#115D64",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F1FCFD",
"type": "color"
},
"100": {
"value": "#DBF7FA",
"type": "color"
},
"200": {
"value": "#B9EEF3",
"type": "color"
},
"300": {
"value": "#8ADEE5",
"type": "color"
},
"400": {
"value": "#5ECAD4",
"type": "color"
},
"500": {
"value": "#3CAEB9",
"type": "color"
},
"600": {
"value": "#35868D",
"type": "color"
},
"700": {
"value": "#2B5F64",
"type": "color"
},
"800": {
"value": "#1F3F42",
"type": "color"
},
"900": {
"value": "#152728",
"type": "color"
}
}
}
}