#4783B8 is a mid-toned, cool indigo. 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 #4783B8 works with other colors. Named schemes with #4783B8 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 #4783B8 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 #4783B8 at work across the surfaces designers actually ship.
:root {
--color-base: #4783B8;
--color-base-rgb: 71 131 184;
--color-base-oklch: oklch(59.3% 0.103 247.2);
--color-50: #F4F8FB;
--color-100: #E1EBF4;
--color-200: #C4D7E8;
--color-300: #9BB9D4;
--color-400: #759BBD;
--color-500: #547DA1;
--color-600: #46637C;
--color-700: #364959;
--color-800: #26313B;
--color-900: #191F25;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
steel-blue: {
50: '#F4F8FB',
100: '#E1EBF4',
200: '#C4D7E8',
300: '#9BB9D4',
400: '#759BBD',
500: '#547DA1',
600: '#46637C',
700: '#364959',
800: '#26313B',
900: '#191F25',
},
}
$base: #4783B8; $base-ink: #141310; $base-50: #F4F8FB; $base-100: #E1EBF4; $base-200: #C4D7E8; $base-300: #9BB9D4; $base-400: #759BBD; $base-500: #547DA1; $base-600: #46637C; $base-700: #364959; $base-800: #26313B; $base-900: #191F25; $base-hover: #396993; $base-subtle: #CCDAE6;
{
"color": {
"base": {
"value": "#4783B8",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F4F8FB",
"type": "color"
},
"100": {
"value": "#E1EBF4",
"type": "color"
},
"200": {
"value": "#C4D7E8",
"type": "color"
},
"300": {
"value": "#9BB9D4",
"type": "color"
},
"400": {
"value": "#759BBD",
"type": "color"
},
"500": {
"value": "#547DA1",
"type": "color"
},
"600": {
"value": "#46637C",
"type": "color"
},
"700": {
"value": "#364959",
"type": "color"
},
"800": {
"value": "#26313B",
"type": "color"
},
"900": {
"value": "#191F25",
"type": "color"
}
}
}
}