#2182EA 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 #2182EA works with other colors. Named schemes with #2182EA 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 #2182EA 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 #2182EA at work across the surfaces designers actually ship.
:root {
--color-base: #2182EA;
--color-base-rgb: 33 130 234;
--color-base-oklch: oklch(60.8% 0.179 254.4);
--color-50: #F0F7FE;
--color-100: #D9EAFD;
--color-200: #B4D5F8;
--color-300: #82B6ED;
--color-400: #5497DE;
--color-500: #3178C3;
--color-600: #2D5F95;
--color-700: #264669;
--color-800: #1C3044;
--color-900: #131E2A;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
signal-blue: {
50: '#F0F7FE',
100: '#D9EAFD',
200: '#B4D5F8',
300: '#82B6ED',
400: '#5497DE',
500: '#3178C3',
600: '#2D5F95',
700: '#264669',
800: '#1C3044',
900: '#131E2A',
},
}
$base: #2182EA; $base-ink: #141310; $base-50: #F0F7FE; $base-100: #D9EAFD; $base-200: #B4D5F8; $base-300: #82B6ED; $base-400: #5497DE; $base-500: #3178C3; $base-600: #2D5F95; $base-700: #264669; $base-800: #1C3044; $base-900: #131E2A; $base-hover: #1267C2; $base-subtle: #C3DAF1;
{
"color": {
"base": {
"value": "#2182EA",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F0F7FE",
"type": "color"
},
"100": {
"value": "#D9EAFD",
"type": "color"
},
"200": {
"value": "#B4D5F8",
"type": "color"
},
"300": {
"value": "#82B6ED",
"type": "color"
},
"400": {
"value": "#5497DE",
"type": "color"
},
"500": {
"value": "#3178C3",
"type": "color"
},
"600": {
"value": "#2D5F95",
"type": "color"
},
"700": {
"value": "#264669",
"type": "color"
},
"800": {
"value": "#1C3044",
"type": "color"
},
"900": {
"value": "#131E2A",
"type": "color"
}
}
}
}