#99F9FF is a soft, cool cyan-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 #99F9FF works with other colors. Named schemes with #99F9FF in its natural role, and a note on why the supporting colors balance it.
Electric Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Electric Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Electric 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.
Electric 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 Electric Blue.
Electric 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 Electric Blue carrying the quiet middle.
How #99F9FF 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 #99F9FF at work across the surfaces designers actually ship.
:root {
--color-base: #99F9FF;
--color-base-rgb: 153 249 255;
--color-base-oklch: oklch(92.5% 0.091 200.8);
--color-50: #F0FDFE;
--color-100: #D8FBFD;
--color-200: #B1F7FC;
--color-300: #77F0F8;
--color-400: #46E1EC;
--color-500: #22C7D2;
--color-600: #23979F;
--color-700: #1F6A70;
--color-800: #184548;
--color-900: #112A2C;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
electric-blue: {
50: '#F0FDFE',
100: '#D8FBFD',
200: '#B1F7FC',
300: '#77F0F8',
400: '#46E1EC',
500: '#22C7D2',
600: '#23979F',
700: '#1F6A70',
800: '#184548',
900: '#112A2C',
},
}
$base: #99F9FF; $base-ink: #141310; $base-50: #F0FDFE; $base-100: #D8FBFD; $base-200: #B1F7FC; $base-300: #77F0F8; $base-400: #46E1EC; $base-500: #22C7D2; $base-600: #23979F; $base-700: #1F6A70; $base-800: #184548; $base-900: #112A2C; $base-hover: #47F3FF; $base-subtle: #E4FAFB;
{
"color": {
"base": {
"value": "#99F9FF",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F0FDFE",
"type": "color"
},
"100": {
"value": "#D8FBFD",
"type": "color"
},
"200": {
"value": "#B1F7FC",
"type": "color"
},
"300": {
"value": "#77F0F8",
"type": "color"
},
"400": {
"value": "#46E1EC",
"type": "color"
},
"500": {
"value": "#22C7D2",
"type": "color"
},
"600": {
"value": "#23979F",
"type": "color"
},
"700": {
"value": "#1F6A70",
"type": "color"
},
"800": {
"value": "#184548",
"type": "color"
},
"900": {
"value": "#112A2C",
"type": "color"
}
}
}
}