#157EBE 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 #157EBE works with other colors. Named schemes with #157EBE 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 #157EBE 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 #157EBE at work across the surfaces designers actually ship.
:root {
--color-base: #157EBE;
--color-base-rgb: 21 126 190;
--color-base-oklch: oklch(57.0% 0.132 243.1);
--color-50: #F1F9FE;
--color-100: #D9EFFC;
--color-200: #B6DEF7;
--color-300: #84C4EB;
--color-400: #57A8DB;
--color-500: #348BC1;
--color-600: #2F6D93;
--color-700: #274F68;
--color-800: #1D3544;
--color-900: #142129;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
steel-blue: {
50: '#F1F9FE',
100: '#D9EFFC',
200: '#B6DEF7',
300: '#84C4EB',
400: '#57A8DB',
500: '#348BC1',
600: '#2F6D93',
700: '#274F68',
800: '#1D3544',
900: '#142129',
},
}
$base: #157EBE; $base-ink: #141310; $base-50: #F1F9FE; $base-100: #D9EFFC; $base-200: #B6DEF7; $base-300: #84C4EB; $base-400: #57A8DB; $base-500: #348BC1; $base-600: #2F6D93; $base-700: #274F68; $base-800: #1D3544; $base-900: #142129; $base-hover: #116397; $base-subtle: #B6D8ED;
{
"color": {
"base": {
"value": "#157EBE",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F1F9FE",
"type": "color"
},
"100": {
"value": "#D9EFFC",
"type": "color"
},
"200": {
"value": "#B6DEF7",
"type": "color"
},
"300": {
"value": "#84C4EB",
"type": "color"
},
"400": {
"value": "#57A8DB",
"type": "color"
},
"500": {
"value": "#348BC1",
"type": "color"
},
"600": {
"value": "#2F6D93",
"type": "color"
},
"700": {
"value": "#274F68",
"type": "color"
},
"800": {
"value": "#1D3544",
"type": "color"
},
"900": {
"value": "#142129",
"type": "color"
}
}
}
}