#4680DD 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 #4680DD works with other colors. Named schemes with #4680DD in its natural role, and a note on why the supporting colors balance it.
Signal Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Signal 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 Signal Blue.
Signal 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.
Signal Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Signal 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 Signal Blue carrying the quiet middle.
How #4680DD 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 #4680DD at work across the surfaces designers actually ship.
:root {
--color-base: #4680DD;
--color-base-rgb: 70 128 221;
--color-base-oklch: oklch(60.7% 0.154 259.4);
--color-50: #F2F6FD;
--color-100: #DCE7F9;
--color-200: #BAD0F2;
--color-300: #8BADE4;
--color-400: #608CD2;
--color-500: #3E6CB7;
--color-600: #36578C;
--color-700: #2C4163;
--color-800: #202D41;
--color-900: #151C28;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
signal-blue: {
50: '#F2F6FD',
100: '#DCE7F9',
200: '#BAD0F2',
300: '#8BADE4',
400: '#608CD2',
500: '#3E6CB7',
600: '#36578C',
700: '#2C4163',
800: '#202D41',
900: '#151C28',
},
}
$base: #4680DD; $base-ink: #141310; $base-50: #F2F6FD; $base-100: #DCE7F9; $base-200: #BAD0F2; $base-300: #8BADE4; $base-400: #608CD2; $base-500: #3E6CB7; $base-600: #36578C; $base-700: #2C4163; $base-800: #202D41; $base-900: #151C28; $base-hover: #2462C5; $base-subtle: #CDDAEF;
{
"color": {
"base": {
"value": "#4680DD",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F2F6FD",
"type": "color"
},
"100": {
"value": "#DCE7F9",
"type": "color"
},
"200": {
"value": "#BAD0F2",
"type": "color"
},
"300": {
"value": "#8BADE4",
"type": "color"
},
"400": {
"value": "#608CD2",
"type": "color"
},
"500": {
"value": "#3E6CB7",
"type": "color"
},
"600": {
"value": "#36578C",
"type": "color"
},
"700": {
"value": "#2C4163",
"type": "color"
},
"800": {
"value": "#202D41",
"type": "color"
},
"900": {
"value": "#151C28",
"type": "color"
}
}
}
}