#649FD4 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 #649FD4 works with other colors. Named schemes with #649FD4 in its natural role, and a note on why the supporting colors balance it.
Carolina Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Carolina Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Carolina 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 Carolina Blue.
Carolina 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 Carolina Blue carrying the quiet middle.
Carolina 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 #649FD4 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 #649FD4 at work across the surfaces designers actually ship.
:root {
--color-base: #649FD4;
--color-base-rgb: 100 159 212;
--color-base-oklch: oklch(68.4% 0.100 246.9);
--color-50: #F3F8FC;
--color-100: #DEEBF7;
--color-200: #BFD8ED;
--color-300: #93BADC;
--color-400: #6A9CC8;
--color-500: #487EAD;
--color-600: #3D6384;
--color-700: #30495E;
--color-800: #23313E;
--color-900: #171F26;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
carolina-blue: {
50: '#F3F8FC',
100: '#DEEBF7',
200: '#BFD8ED',
300: '#93BADC',
400: '#6A9CC8',
500: '#487EAD',
600: '#3D6384',
700: '#30495E',
800: '#23313E',
900: '#171F26',
},
}
$base: #649FD4; $base-ink: #141310; $base-50: #F3F8FC; $base-100: #DEEBF7; $base-200: #BFD8ED; $base-300: #93BADC; $base-400: #6A9CC8; $base-500: #487EAD; $base-600: #3D6384; $base-700: #30495E; $base-800: #23313E; $base-900: #171F26; $base-hover: #3681C3; $base-subtle: #D4E2EE;
{
"color": {
"base": {
"value": "#649FD4",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3F8FC",
"type": "color"
},
"100": {
"value": "#DEEBF7",
"type": "color"
},
"200": {
"value": "#BFD8ED",
"type": "color"
},
"300": {
"value": "#93BADC",
"type": "color"
},
"400": {
"value": "#6A9CC8",
"type": "color"
},
"500": {
"value": "#487EAD",
"type": "color"
},
"600": {
"value": "#3D6384",
"type": "color"
},
"700": {
"value": "#30495E",
"type": "color"
},
"800": {
"value": "#23313E",
"type": "color"
},
"900": {
"value": "#171F26",
"type": "color"
}
}
}
}