#99CAEF is a soft, cool blue. 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 #99CAEF works with other colors. Named schemes with #99CAEF in its natural role, and a note on why the supporting colors balance it.
Baby Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Baby Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Baby 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.
Baby 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 Baby Blue.
Baby 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 Baby Blue carrying the quiet middle.
How #99CAEF 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 #99CAEF at work across the surfaces designers actually ship.
:root {
--color-base: #99CAEF;
--color-base-rgb: 153 202 239;
--color-base-oklch: oklch(81.8% 0.073 241.4);
--color-50: #F1F8FD;
--color-100: #DBEDFA;
--color-200: #B9DAF4;
--color-300: #88BEE7;
--color-400: #5DA1D5;
--color-500: #3A83BB;
--color-600: #33678E;
--color-700: #2A4B65;
--color-800: #1F3342;
--color-900: #152028;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
baby-blue: {
50: '#F1F8FD',
100: '#DBEDFA',
200: '#B9DAF4',
300: '#88BEE7',
400: '#5DA1D5',
500: '#3A83BB',
600: '#33678E',
700: '#2A4B65',
800: '#1F3342',
900: '#152028',
},
}
$base: #99CAEF; $base-ink: #141310; $base-50: #F1F8FD; $base-100: #DBEDFA; $base-200: #B9DAF4; $base-300: #88BEE7; $base-400: #5DA1D5; $base-500: #3A83BB; $base-600: #33678E; $base-700: #2A4B65; $base-800: #1F3342; $base-900: #152028; $base-hover: #56A7E5; $base-subtle: #E4EFF7;
{
"color": {
"base": {
"value": "#99CAEF",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F1F8FD",
"type": "color"
},
"100": {
"value": "#DBEDFA",
"type": "color"
},
"200": {
"value": "#B9DAF4",
"type": "color"
},
"300": {
"value": "#88BEE7",
"type": "color"
},
"400": {
"value": "#5DA1D5",
"type": "color"
},
"500": {
"value": "#3A83BB",
"type": "color"
},
"600": {
"value": "#33678E",
"type": "color"
},
"700": {
"value": "#2A4B65",
"type": "color"
},
"800": {
"value": "#1F3342",
"type": "color"
},
"900": {
"value": "#152028",
"type": "color"
}
}
}
}