#145ECC 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 #145ECC works with other colors. Named schemes with #145ECC in its natural role, and a note on why the supporting colors balance it.
Denim Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Denim 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 Denim Blue.
Denim 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.
Denim Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Denim 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 Denim Blue carrying the quiet middle.
How #145ECC 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 #145ECC at work across the surfaces designers actually ship.
:root {
--color-base: #145ECC;
--color-base-rgb: 20 94 204;
--color-base-oklch: oklch(50.7% 0.184 259.4);
--color-50: #F0F6FE;
--color-100: #D9E7FC;
--color-200: #B5D0F8;
--color-300: #83ADED;
--color-400: #558BDD;
--color-500: #326CC3;
--color-600: #2E5794;
--color-700: #264169;
--color-800: #1D2D44;
--color-900: #141C2A;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
denim-blue: {
50: '#F0F6FE',
100: '#D9E7FC',
200: '#B5D0F8',
300: '#83ADED',
400: '#558BDD',
500: '#326CC3',
600: '#2E5794',
700: '#264169',
800: '#1D2D44',
900: '#141C2A',
},
}
$base: #145ECC; $base-ink: #FFFFFF; $base-50: #F0F6FE; $base-100: #D9E7FC; $base-200: #B5D0F8; $base-300: #83ADED; $base-400: #558BDD; $base-500: #326CC3; $base-600: #2E5794; $base-700: #264169; $base-800: #1D2D44; $base-900: #141C2A; $base-hover: #104BA3; $base-subtle: #B9CFEF;
{
"color": {
"base": {
"value": "#145ECC",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F0F6FE",
"type": "color"
},
"100": {
"value": "#D9E7FC",
"type": "color"
},
"200": {
"value": "#B5D0F8",
"type": "color"
},
"300": {
"value": "#83ADED",
"type": "color"
},
"400": {
"value": "#558BDD",
"type": "color"
},
"500": {
"value": "#326CC3",
"type": "color"
},
"600": {
"value": "#2E5794",
"type": "color"
},
"700": {
"value": "#264169",
"type": "color"
},
"800": {
"value": "#1D2D44",
"type": "color"
},
"900": {
"value": "#141C2A",
"type": "color"
}
}
}
}