#425574 is a mid-toned, cool indigo. 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 #425574 works with other colors. Named schemes with #425574 in its natural role, and a note on why the supporting colors balance it.
Iron Gray opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Iron Gray keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Iron 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 Iron Gray.
Iron 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.
Iron 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 Iron Gray carrying the quiet middle.
How #425574 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 #425574 at work across the surfaces designers actually ship.
:root {
--color-base: #425574;
--color-base-rgb: 66 85 116;
--color-base-oklch: oklch(44.7% 0.056 260.0);
--color-50: #F5F7FA;
--color-100: #E5E9F0;
--color-200: #CBD4E1;
--color-300: #A6B4C9;
--color-400: #8394AF;
--color-500: #637592;
--color-600: #505D72;
--color-700: #3D4552;
--color-800: #2A2F37;
--color-900: #1B1E22;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
iron-gray: {
50: '#F5F7FA',
100: '#E5E9F0',
200: '#CBD4E1',
300: '#A6B4C9',
400: '#8394AF',
500: '#637592',
600: '#505D72',
700: '#3D4552',
800: '#2A2F37',
900: '#1B1E22',
},
}
$base: #425574; $base-ink: #FFFFFF; $base-50: #F5F7FA; $base-100: #E5E9F0; $base-200: #CBD4E1; $base-300: #A6B4C9; $base-400: #8394AF; $base-500: #637592; $base-600: #505D72; $base-700: #3D4552; $base-800: #2A2F37; $base-900: #1B1E22; $base-hover: #36455D; $base-subtle: #C4CCD8;
{
"color": {
"base": {
"value": "#425574",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F5F7FA",
"type": "color"
},
"100": {
"value": "#E5E9F0",
"type": "color"
},
"200": {
"value": "#CBD4E1",
"type": "color"
},
"300": {
"value": "#A6B4C9",
"type": "color"
},
"400": {
"value": "#8394AF",
"type": "color"
},
"500": {
"value": "#637592",
"type": "color"
},
"600": {
"value": "#505D72",
"type": "color"
},
"700": {
"value": "#3D4552",
"type": "color"
},
"800": {
"value": "#2A2F37",
"type": "color"
},
"900": {
"value": "#1B1E22",
"type": "color"
}
}
}
}