#2E5B60 is a muted, 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 #2E5B60 works with other colors. Named schemes with #2E5B60 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 #2E5B60 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 #2E5B60 at work across the surfaces designers actually ship.
:root {
--color-base: #2E5B60;
--color-base-rgb: 46 91 96;
--color-base-oklch: oklch(44.1% 0.050 204.9);
--color-50: #F4FAFA;
--color-100: #E3F1F2;
--color-200: #C8E2E4;
--color-300: #A1CACE;
--color-400: #7CB0B6;
--color-500: #5C9399;
--color-600: #4B7277;
--color-700: #395356;
--color-800: #283739;
--color-900: #1A2223;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
dark-slate-gray: {
50: '#F4FAFA',
100: '#E3F1F2',
200: '#C8E2E4',
300: '#A1CACE',
400: '#7CB0B6',
500: '#5C9399',
600: '#4B7277',
700: '#395356',
800: '#283739',
900: '#1A2223',
},
}
$base: #2E5B60; $base-ink: #FFFFFF; $base-50: #F4FAFA; $base-100: #E3F1F2; $base-200: #C8E2E4; $base-300: #A1CACE; $base-400: #7CB0B6; $base-500: #5C9399; $base-600: #4B7277; $base-700: #395356; $base-800: #283739; $base-900: #1A2223; $base-hover: #25494D; $base-subtle: #B9D4D7;
{
"color": {
"base": {
"value": "#2E5B60",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F4FAFA",
"type": "color"
},
"100": {
"value": "#E3F1F2",
"type": "color"
},
"200": {
"value": "#C8E2E4",
"type": "color"
},
"300": {
"value": "#A1CACE",
"type": "color"
},
"400": {
"value": "#7CB0B6",
"type": "color"
},
"500": {
"value": "#5C9399",
"type": "color"
},
"600": {
"value": "#4B7277",
"type": "color"
},
"700": {
"value": "#395356",
"type": "color"
},
"800": {
"value": "#283739",
"type": "color"
},
"900": {
"value": "#1A2223",
"type": "color"
}
}
}
}