#6597CD 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 reproduces cleanly in print.
Not just a swatch — here's how #6597CD works with other colors. Named schemes with #6597CD 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 #6597CD 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 #6597CD at work across the surfaces designers actually ship.
:root {
--color-base: #6597CD;
--color-base-rgb: 101 151 205;
--color-base-oklch: oklch(66.3% 0.097 251.3);
--color-50: #F3F7FC;
--color-100: #E0EAF6;
--color-200: #C1D6EB;
--color-300: #97B7D9;
--color-400: #6F98C3;
--color-500: #4E79A7;
--color-600: #416081;
--color-700: #33475C;
--color-800: #24303D;
--color-900: #181E26;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
carolina-blue: {
50: '#F3F7FC',
100: '#E0EAF6',
200: '#C1D6EB',
300: '#97B7D9',
400: '#6F98C3',
500: '#4E79A7',
600: '#416081',
700: '#33475C',
800: '#24303D',
900: '#181E26',
},
}
$base: #6597CD; $base-ink: #141310; $base-50: #F3F7FC; $base-100: #E0EAF6; $base-200: #C1D6EB; $base-300: #97B7D9; $base-400: #6F98C3; $base-500: #4E79A7; $base-600: #416081; $base-700: #33475C; $base-800: #24303D; $base-900: #181E26; $base-hover: #3C78B9; $base-subtle: #D5E0EC;
{
"color": {
"base": {
"value": "#6597CD",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3F7FC",
"type": "color"
},
"100": {
"value": "#E0EAF6",
"type": "color"
},
"200": {
"value": "#C1D6EB",
"type": "color"
},
"300": {
"value": "#97B7D9",
"type": "color"
},
"400": {
"value": "#6F98C3",
"type": "color"
},
"500": {
"value": "#4E79A7",
"type": "color"
},
"600": {
"value": "#416081",
"type": "color"
},
"700": {
"value": "#33475C",
"type": "color"
},
"800": {
"value": "#24303D",
"type": "color"
},
"900": {
"value": "#181E26",
"type": "color"
}
}
}
}