#3992DB 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 #3992DB works with other colors. Named schemes with #3992DB in its natural role, and a note on why the supporting colors balance it.
Cornflower Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Cornflower Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Cornflower 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 Cornflower Blue.
Cornflower 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 Cornflower Blue carrying the quiet middle.
Cornflower Blue anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.
How #3992DB 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 #3992DB at work across the surfaces designers actually ship.
:root {
--color-base: #3992DB;
--color-base-rgb: 57 146 219;
--color-base-oklch: oklch(64.1% 0.138 247.1);
--color-50: #F2F8FD;
--color-100: #DCECF9;
--color-200: #BAD9F2;
--color-300: #8BBCE4;
--color-400: #609FD2;
--color-500: #3E80B7;
--color-600: #36658C;
--color-700: #2C4A63;
--color-800: #203241;
--color-900: #152028;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cornflower-blue: {
50: '#F2F8FD',
100: '#DCECF9',
200: '#BAD9F2',
300: '#8BBCE4',
400: '#609FD2',
500: '#3E80B7',
600: '#36658C',
700: '#2C4A63',
800: '#203241',
900: '#152028',
},
}
$base: #3992DB; $base-ink: #141310; $base-50: #F2F8FD; $base-100: #DCECF9; $base-200: #BAD9F2; $base-300: #8BBCE4; $base-400: #609FD2; $base-500: #3E80B7; $base-600: #36658C; $base-700: #2C4A63; $base-800: #203241; $base-900: #152028; $base-hover: #2276BA; $base-subtle: #C9DEEE;
{
"color": {
"base": {
"value": "#3992DB",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F2F8FD",
"type": "color"
},
"100": {
"value": "#DCECF9",
"type": "color"
},
"200": {
"value": "#BAD9F2",
"type": "color"
},
"300": {
"value": "#8BBCE4",
"type": "color"
},
"400": {
"value": "#609FD2",
"type": "color"
},
"500": {
"value": "#3E80B7",
"type": "color"
},
"600": {
"value": "#36658C",
"type": "color"
},
"700": {
"value": "#2C4A63",
"type": "color"
},
"800": {
"value": "#203241",
"type": "color"
},
"900": {
"value": "#152028",
"type": "color"
}
}
}
}