#5A99EA 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 #5A99EA works with other colors. Named schemes with #5A99EA in its natural role, and a note on why the supporting colors balance it.
Cornflower Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Cornflower Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Cornflower 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 Cornflower Blue.
Cornflower 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 Cornflower Blue carrying the quiet middle.
Cornflower 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 #5A99EA 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 #5A99EA at work across the surfaces designers actually ship.
:root {
--color-base: #5A99EA;
--color-base-rgb: 90 153 234;
--color-base-oklch: oklch(67.7% 0.137 255.5);
--color-50: #F1F6FE;
--color-100: #DAE8FB;
--color-200: #B7D2F5;
--color-300: #86B1E9;
--color-400: #5991D9;
--color-500: #3771BE;
--color-600: #315B91;
--color-700: #284366;
--color-800: #1E2E43;
--color-900: #141D29;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cornflower-blue: {
50: '#F1F6FE',
100: '#DAE8FB',
200: '#B7D2F5',
300: '#86B1E9',
400: '#5991D9',
500: '#3771BE',
600: '#315B91',
700: '#284366',
800: '#1E2E43',
900: '#141D29',
},
}
$base: #5A99EA; $base-ink: #141310; $base-50: #F1F6FE; $base-100: #DAE8FB; $base-200: #B7D2F5; $base-300: #86B1E9; $base-400: #5991D9; $base-500: #3771BE; $base-600: #315B91; $base-700: #284366; $base-800: #1E2E43; $base-900: #141D29; $base-hover: #2376E2; $base-subtle: #D3E1F4;
{
"color": {
"base": {
"value": "#5A99EA",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F1F6FE",
"type": "color"
},
"100": {
"value": "#DAE8FB",
"type": "color"
},
"200": {
"value": "#B7D2F5",
"type": "color"
},
"300": {
"value": "#86B1E9",
"type": "color"
},
"400": {
"value": "#5991D9",
"type": "color"
},
"500": {
"value": "#3771BE",
"type": "color"
},
"600": {
"value": "#315B91",
"type": "color"
},
"700": {
"value": "#284366",
"type": "color"
},
"800": {
"value": "#1E2E43",
"type": "color"
},
"900": {
"value": "#141D29",
"type": "color"
}
}
}
}