#11554E is a mid-toned, cool cyan. On the Color Lab it reads quietly premium. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #11554E works with other colors. Named schemes with #11554E 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 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 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 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 #11554E 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 #11554E at work across the surfaces designers actually ship.
:root {
--color-base: #11554E;
--color-base-rgb: 17 85 78;
--color-base-oklch: oklch(40.7% 0.066 184.7);
--color-50: #F2FDFC;
--color-100: #DCF9F6;
--color-200: #BBF1EC;
--color-300: #8CE3DA;
--color-400: #62D0C5;
--color-500: #3FB5AA;
--color-600: #378B82;
--color-700: #2C625D;
--color-800: #20413D;
--color-900: #162826;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
dark-slate-gray: {
50: '#F2FDFC',
100: '#DCF9F6',
200: '#BBF1EC',
300: '#8CE3DA',
400: '#62D0C5',
500: '#3FB5AA',
600: '#378B82',
700: '#2C625D',
800: '#20413D',
900: '#162826',
},
}
$base: #11554E; $base-ink: #FFFFFF; $base-50: #F2FDFC; $base-100: #DCF9F6; $base-200: #BBF1EC; $base-300: #8CE3DA; $base-400: #62D0C5; $base-500: #3FB5AA; $base-600: #378B82; $base-700: #2C625D; $base-800: #20413D; $base-900: #162826; $base-hover: #0D443F; $base-subtle: #A3E1DB;
{
"color": {
"base": {
"value": "#11554E",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F2FDFC",
"type": "color"
},
"100": {
"value": "#DCF9F6",
"type": "color"
},
"200": {
"value": "#BBF1EC",
"type": "color"
},
"300": {
"value": "#8CE3DA",
"type": "color"
},
"400": {
"value": "#62D0C5",
"type": "color"
},
"500": {
"value": "#3FB5AA",
"type": "color"
},
"600": {
"value": "#378B82",
"type": "color"
},
"700": {
"value": "#2C625D",
"type": "color"
},
"800": {
"value": "#20413D",
"type": "color"
},
"900": {
"value": "#162826",
"type": "color"
}
}
}
}