#43829D is a mid-toned, cool blue. On the Color Lab it reads clean and engineered, restrained and easy to live with. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #43829D works with other colors. Named schemes with #43829D 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 keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal 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 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 #43829D 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 #43829D at work across the surfaces designers actually ship.
:root {
--color-base: #43829D;
--color-base-rgb: 67 130 157;
--color-base-oklch: oklch(57.6% 0.077 228.2);
--color-50: #F4F9FB;
--color-100: #E2EEF3;
--color-200: #C6DDE6;
--color-300: #9EC2D1;
--color-400: #78A6BA;
--color-500: #57889E;
--color-600: #486B7A;
--color-700: #374E58;
--color-800: #27343A;
--color-900: #192124;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
steel-blue: {
50: '#F4F9FB',
100: '#E2EEF3',
200: '#C6DDE6',
300: '#9EC2D1',
400: '#78A6BA',
500: '#57889E',
600: '#486B7A',
700: '#374E58',
800: '#27343A',
900: '#192124',
},
}
$base: #43829D; $base-ink: #141310; $base-50: #F4F9FB; $base-100: #E2EEF3; $base-200: #C6DDE6; $base-300: #9EC2D1; $base-400: #78A6BA; $base-500: #57889E; $base-600: #486B7A; $base-700: #374E58; $base-800: #27343A; $base-900: #192124; $base-hover: #36687E; $base-subtle: #C7D9E1;
{
"color": {
"base": {
"value": "#43829D",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F4F9FB",
"type": "color"
},
"100": {
"value": "#E2EEF3",
"type": "color"
},
"200": {
"value": "#C6DDE6",
"type": "color"
},
"300": {
"value": "#9EC2D1",
"type": "color"
},
"400": {
"value": "#78A6BA",
"type": "color"
},
"500": {
"value": "#57889E",
"type": "color"
},
"600": {
"value": "#486B7A",
"type": "color"
},
"700": {
"value": "#374E58",
"type": "color"
},
"800": {
"value": "#27343A",
"type": "color"
},
"900": {
"value": "#192124",
"type": "color"
}
}
}
}