#02449C is a mid-toned, cool indigo. On the Color Lab it reads clean and engineered, quietly premium. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #02449C works with other colors. Named schemes with #02449C in its natural role, and a note on why the supporting colors balance it.
Cobalt Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Cobalt 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 Cobalt Blue.
Cobalt 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.
Cobalt Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Cobalt 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 Cobalt Blue carrying the quiet middle.
How #02449C 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 #02449C at work across the surfaces designers actually ship.
:root {
--color-base: #02449C;
--color-base-rgb: 2 68 156;
--color-base-oklch: oklch(40.9% 0.156 258.9);
--color-50: #F0F6FE;
--color-100: #D8E8FD;
--color-200: #B1D1FC;
--color-300: #79AFF6;
--color-400: #498EE9;
--color-500: #256FD0;
--color-600: #25599D;
--color-700: #20426F;
--color-800: #192D48;
--color-900: #111D2C;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
cobalt-blue: {
50: '#F0F6FE',
100: '#D8E8FD',
200: '#B1D1FC',
300: '#79AFF6',
400: '#498EE9',
500: '#256FD0',
600: '#25599D',
700: '#20426F',
800: '#192D48',
900: '#111D2C',
},
}
$base: #02449C; $base-ink: #FFFFFF; $base-50: #F0F6FE; $base-100: #D8E8FD; $base-200: #B1D1FC; $base-300: #79AFF6; $base-400: #498EE9; $base-500: #256FD0; $base-600: #25599D; $base-700: #20426F; $base-800: #192D48; $base-900: #111D2C; $base-hover: #02377D; $base-subtle: #A3C5F1;
{
"color": {
"base": {
"value": "#02449C",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F0F6FE",
"type": "color"
},
"100": {
"value": "#D8E8FD",
"type": "color"
},
"200": {
"value": "#B1D1FC",
"type": "color"
},
"300": {
"value": "#79AFF6",
"type": "color"
},
"400": {
"value": "#498EE9",
"type": "color"
},
"500": {
"value": "#256FD0",
"type": "color"
},
"600": {
"value": "#25599D",
"type": "color"
},
"700": {
"value": "#20426F",
"type": "color"
},
"800": {
"value": "#192D48",
"type": "color"
},
"900": {
"value": "#111D2C",
"type": "color"
}
}
}
}