#99BFE3 is a soft, cool indigo. On the Color Lab it reads clean and engineered. It holds up as a large surface and is too pale to lead as a primary accent.
Not just a swatch — here's how #99BFE3 works with other colors. Named schemes with #99BFE3 in its natural role, and a note on why the supporting colors balance it.
Light Steel Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Light Steel Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Light Steel Blue sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.
Light Steel 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 Light Steel Blue.
Light Steel 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 Light Steel Blue carrying the quiet middle.
How #99BFE3 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 #99BFE3 at work across the surfaces designers actually ship.
:root {
--color-base: #99BFE3;
--color-base-rgb: 153 191 227;
--color-base-oklch: oklch(79.0% 0.066 247.3);
--color-50: #F3F8FC;
--color-100: #DEEBF7;
--color-200: #BFD7ED;
--color-300: #93B9DC;
--color-400: #6A9BC8;
--color-500: #487CAD;
--color-600: #3D6284;
--color-700: #30485E;
--color-800: #23313E;
--color-900: #171F26;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
light-steel-blue: {
50: '#F3F8FC',
100: '#DEEBF7',
200: '#BFD7ED',
300: '#93B9DC',
400: '#6A9BC8',
500: '#487CAD',
600: '#3D6284',
700: '#30485E',
800: '#23313E',
900: '#171F26',
},
}
$base: #99BFE3; $base-ink: #141310; $base-50: #F3F8FC; $base-100: #DEEBF7; $base-200: #BFD7ED; $base-300: #93B9DC; $base-400: #6A9BC8; $base-500: #487CAD; $base-600: #3D6284; $base-700: #30485E; $base-800: #23313E; $base-900: #171F26; $base-hover: #5F9BD3; $base-subtle: #E4ECF4;
{
"color": {
"base": {
"value": "#99BFE3",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3F8FC",
"type": "color"
},
"100": {
"value": "#DEEBF7",
"type": "color"
},
"200": {
"value": "#BFD7ED",
"type": "color"
},
"300": {
"value": "#93B9DC",
"type": "color"
},
"400": {
"value": "#6A9BC8",
"type": "color"
},
"500": {
"value": "#487CAD",
"type": "color"
},
"600": {
"value": "#3D6284",
"type": "color"
},
"700": {
"value": "#30485E",
"type": "color"
},
"800": {
"value": "#23313E",
"type": "color"
},
"900": {
"value": "#171F26",
"type": "color"
}
}
}
}