#39ACEA is a mid-toned, cool blue. On the Color Lab it reads clean and engineered. It sits well as a supporting tone.
Not just a swatch — here's how #39ACEA works with other colors. Named schemes with #39ACEA in its natural role, and a note on why the supporting colors balance it.
Picton Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Picton Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Picton 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 Picton Blue.
Picton 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 Picton Blue carrying the quiet middle.
Picton 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 #39ACEA 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 #39ACEA at work across the surfaces designers actually ship.
:root {
--color-base: #39ACEA;
--color-base-rgb: 57 172 234;
--color-base-oklch: oklch(70.8% 0.135 237.2);
--color-50: #F1F9FE;
--color-100: #D9F0FC;
--color-200: #B5E0F7;
--color-300: #83C7EC;
--color-400: #56ADDC;
--color-500: #3390C2;
--color-600: #2E7093;
--color-700: #275168;
--color-800: #1D3644;
--color-900: #14222A;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
picton-blue: {
50: '#F1F9FE',
100: '#D9F0FC',
200: '#B5E0F7',
300: '#83C7EC',
400: '#56ADDC',
500: '#3390C2',
600: '#2E7093',
700: '#275168',
800: '#1D3644',
900: '#14222A',
},
}
$base: #39ACEA; $base-ink: #141310; $base-50: #F1F9FE; $base-100: #D9F0FC; $base-200: #B5E0F7; $base-300: #83C7EC; $base-400: #56ADDC; $base-500: #3390C2; $base-600: #2E7093; $base-700: #275168; $base-800: #1D3644; $base-900: #14222A; $base-hover: #1691D2; $base-subtle: #CAE4F2;
{
"color": {
"base": {
"value": "#39ACEA",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F1F9FE",
"type": "color"
},
"100": {
"value": "#D9F0FC",
"type": "color"
},
"200": {
"value": "#B5E0F7",
"type": "color"
},
"300": {
"value": "#83C7EC",
"type": "color"
},
"400": {
"value": "#56ADDC",
"type": "color"
},
"500": {
"value": "#3390C2",
"type": "color"
},
"600": {
"value": "#2E7093",
"type": "color"
},
"700": {
"value": "#275168",
"type": "color"
},
"800": {
"value": "#1D3644",
"type": "color"
},
"900": {
"value": "#14222A",
"type": "color"
}
}
}
}