#117FBE is a mid-toned, cool blue. On the Color Lab it reads clean and engineered. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #117FBE works with other colors. Named schemes with #117FBE in its natural role, and a note on why the supporting colors balance it.
Steel Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Steel Blue is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Steel Blue.
Steel Blue plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Steel Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Steel Blue 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 Steel Blue carrying the quiet middle.
How #117FBE 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 #117FBE at work across the surfaces designers actually ship.
:root {
--color-base: #117FBE;
--color-base-rgb: 17 127 190;
--color-base-oklch: oklch(57.2% 0.131 242.2);
--color-50: #F0F9FE;
--color-100: #D8EFFD;
--color-200: #B4DFF8;
--color-300: #81C6EE;
--color-400: #53ACDF;
--color-500: #308EC4;
--color-600: #2D6F95;
--color-700: #255069;
--color-800: #1C3645;
--color-900: #13222A;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
steel-blue: {
50: '#F0F9FE',
100: '#D8EFFD',
200: '#B4DFF8',
300: '#81C6EE',
400: '#53ACDF',
500: '#308EC4',
600: '#2D6F95',
700: '#255069',
800: '#1C3645',
900: '#13222A',
},
}
$base: #117FBE; $base-ink: #141310; $base-50: #F0F9FE; $base-100: #D8EFFD; $base-200: #B4DFF8; $base-300: #81C6EE; $base-400: #53ACDF; $base-500: #308EC4; $base-600: #2D6F95; $base-700: #255069; $base-800: #1C3645; $base-900: #13222A; $base-hover: #0D669A; $base-subtle: #B5DAEF;
{
"color": {
"base": {
"value": "#117FBE",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F0F9FE",
"type": "color"
},
"100": {
"value": "#D8EFFD",
"type": "color"
},
"200": {
"value": "#B4DFF8",
"type": "color"
},
"300": {
"value": "#81C6EE",
"type": "color"
},
"400": {
"value": "#53ACDF",
"type": "color"
},
"500": {
"value": "#308EC4",
"type": "color"
},
"600": {
"value": "#2D6F95",
"type": "color"
},
"700": {
"value": "#255069",
"type": "color"
},
"800": {
"value": "#1C3645",
"type": "color"
},
"900": {
"value": "#13222A",
"type": "color"
}
}
}
}