#3FF3E4 is a soft, cool cyan. It is too pale to lead as a primary accent and sits well as a supporting tone.
Not just a swatch — here's how #3FF3E4 works with other colors. Named schemes with #3FF3E4 in its natural role, and a note on why the supporting colors balance it.
Cyan opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Cyan keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Cyan 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 Cyan carrying the quiet middle.
Cyan is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Cyan.
Cyan 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 #3FF3E4 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 #3FF3E4 at work across the surfaces designers actually ship.
:root {
--color-base: #3FF3E4;
--color-base-rgb: 63 243 228;
--color-base-oklch: oklch(87.4% 0.141 186.5);
--color-50: #F0FEFD;
--color-100: #D8FDFA;
--color-200: #B2FAF4;
--color-300: #7FF0E7;
--color-400: #50E2D6;
--color-500: #2DC8BB;
--color-600: #2A988F;
--color-700: #246B65;
--color-800: #1B4642;
--color-900: #132B29;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cyan: {
50: '#F0FEFD',
100: '#D8FDFA',
200: '#B2FAF4',
300: '#7FF0E7',
400: '#50E2D6',
500: '#2DC8BB',
600: '#2A988F',
700: '#246B65',
800: '#1B4642',
900: '#132B29',
},
}
$base: #3FF3E4; $base-ink: #141310; $base-50: #F0FEFD; $base-100: #D8FDFA; $base-200: #B2FAF4; $base-300: #7FF0E7; $base-400: #50E2D6; $base-500: #2DC8BB; $base-600: #2A988F; $base-700: #246B65; $base-800: #1B4642; $base-900: #132B29; $base-hover: #0FE6D4; $base-subtle: #CCF5F1;
{
"color": {
"base": {
"value": "#3FF3E4",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F0FEFD",
"type": "color"
},
"100": {
"value": "#D8FDFA",
"type": "color"
},
"200": {
"value": "#B2FAF4",
"type": "color"
},
"300": {
"value": "#7FF0E7",
"type": "color"
},
"400": {
"value": "#50E2D6",
"type": "color"
},
"500": {
"value": "#2DC8BB",
"type": "color"
},
"600": {
"value": "#2A988F",
"type": "color"
},
"700": {
"value": "#246B65",
"type": "color"
},
"800": {
"value": "#1B4642",
"type": "color"
},
"900": {
"value": "#132B29",
"type": "color"
}
}
}
}