#5997D9 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 #5997D9 works with other colors. Named schemes with #5997D9 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 #5997D9 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 #5997D9 at work across the surfaces designers actually ship.
:root {
--color-base: #5997D9;
--color-base-rgb: 89 151 217;
--color-base-oklch: oklch(66.3% 0.118 251.4);
--color-50: #F2F7FD;
--color-100: #DDEAF8;
--color-200: #BDD5F0;
--color-300: #8FB6E0;
--color-400: #6597CD;
--color-500: #4379B2;
--color-600: #3A6088;
--color-700: #2E4761;
--color-800: #213040;
--color-900: #161E27;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
carolina-blue: {
50: '#F2F7FD',
100: '#DDEAF8',
200: '#BDD5F0',
300: '#8FB6E0',
400: '#6597CD',
500: '#4379B2',
600: '#3A6088',
700: '#2E4761',
800: '#213040',
900: '#161E27',
},
}
$base: #5997D9; $base-ink: #141310; $base-50: #F2F7FD; $base-100: #DDEAF8; $base-200: #BDD5F0; $base-300: #8FB6E0; $base-400: #6597CD; $base-500: #4379B2; $base-600: #3A6088; $base-700: #2E4761; $base-800: #213040; $base-900: #161E27; $base-hover: #2D78C8; $base-subtle: #D2E0EF;
{
"color": {
"base": {
"value": "#5997D9",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F2F7FD",
"type": "color"
},
"100": {
"value": "#DDEAF8",
"type": "color"
},
"200": {
"value": "#BDD5F0",
"type": "color"
},
"300": {
"value": "#8FB6E0",
"type": "color"
},
"400": {
"value": "#6597CD",
"type": "color"
},
"500": {
"value": "#4379B2",
"type": "color"
},
"600": {
"value": "#3A6088",
"type": "color"
},
"700": {
"value": "#2E4761",
"type": "color"
},
"800": {
"value": "#213040",
"type": "color"
},
"900": {
"value": "#161E27",
"type": "color"
}
}
}
}