#238ECC is a mid-toned, cool blue. On the Color Lab it reads clean and engineered. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #238ECC works with other colors. Named schemes with #238ECC in its natural role, and a note on why the supporting colors balance it.
Ocean Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Ocean 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 Ocean Blue.
Ocean Blue plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Ocean Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Ocean 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 Ocean Blue carrying the quiet middle.
How #238ECC 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 #238ECC at work across the surfaces designers actually ship.
:root {
--color-base: #238ECC;
--color-base-rgb: 35 142 204;
--color-base-oklch: oklch(61.8% 0.131 240.4);
--color-50: #F1F9FD;
--color-100: #DBEFFA;
--color-200: #B9DEF3;
--color-300: #8AC4E5;
--color-400: #5EA9D4;
--color-500: #3C8BB9;
--color-600: #356D8D;
--color-700: #2B4F64;
--color-800: #1F3542;
--color-900: #152128;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
ocean-blue: {
50: '#F1F9FD',
100: '#DBEFFA',
200: '#B9DEF3',
300: '#8AC4E5',
400: '#5EA9D4',
500: '#3C8BB9',
600: '#356D8D',
700: '#2B4F64',
800: '#1F3542',
900: '#152128',
},
}
$base: #238ECC; $base-ink: #141310; $base-50: #F1F9FD; $base-100: #DBEFFA; $base-200: #B9DEF3; $base-300: #8AC4E5; $base-400: #5EA9D4; $base-500: #3C8BB9; $base-600: #356D8D; $base-700: #2B4F64; $base-800: #1F3542; $base-900: #152128; $base-hover: #1C72A4; $base-subtle: #C1DCEC;
{
"color": {
"base": {
"value": "#238ECC",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F1F9FD",
"type": "color"
},
"100": {
"value": "#DBEFFA",
"type": "color"
},
"200": {
"value": "#B9DEF3",
"type": "color"
},
"300": {
"value": "#8AC4E5",
"type": "color"
},
"400": {
"value": "#5EA9D4",
"type": "color"
},
"500": {
"value": "#3C8BB9",
"type": "color"
},
"600": {
"value": "#356D8D",
"type": "color"
},
"700": {
"value": "#2B4F64",
"type": "color"
},
"800": {
"value": "#1F3542",
"type": "color"
},
"900": {
"value": "#152128",
"type": "color"
}
}
}
}