#277E9D is a mid-toned, cool blue. On the Color Lab it reads clean and engineered, with a faded, vintage edge. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #277E9D works with other colors. Named schemes with #277E9D in its natural role, and a note on why the supporting colors balance it.
Teal Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Teal 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 Teal Blue.
Teal 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.
Teal Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Teal 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 Teal Blue carrying the quiet middle.
How #277E9D 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 #277E9D at work across the surfaces designers actually ship.
:root {
--color-base: #277E9D;
--color-base-rgb: 39 126 157;
--color-base-oklch: oklch(55.6% 0.093 226.3);
--color-50: #F2FAFC;
--color-100: #DEF1F8;
--color-200: #BEE2EF;
--color-300: #91CADE;
--color-400: #67B0CB;
--color-500: #4693AF;
--color-600: #3C7286;
--color-700: #2F5360;
--color-800: #22373F;
--color-900: #162227;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
teal-blue: {
50: '#F2FAFC',
100: '#DEF1F8',
200: '#BEE2EF',
300: '#91CADE',
400: '#67B0CB',
500: '#4693AF',
600: '#3C7286',
700: '#2F5360',
800: '#22373F',
900: '#162227',
},
}
$base: #277E9D; $base-ink: #FFFFFF; $base-50: #F2FAFC; $base-100: #DEF1F8; $base-200: #BEE2EF; $base-300: #91CADE; $base-400: #67B0CB; $base-500: #4693AF; $base-600: #3C7286; $base-700: #2F5360; $base-800: #22373F; $base-900: #162227; $base-hover: #1F637C; $base-subtle: #BADAE5;
{
"color": {
"base": {
"value": "#277E9D",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F2FAFC",
"type": "color"
},
"100": {
"value": "#DEF1F8",
"type": "color"
},
"200": {
"value": "#BEE2EF",
"type": "color"
},
"300": {
"value": "#91CADE",
"type": "color"
},
"400": {
"value": "#67B0CB",
"type": "color"
},
"500": {
"value": "#4693AF",
"type": "color"
},
"600": {
"value": "#3C7286",
"type": "color"
},
"700": {
"value": "#2F5360",
"type": "color"
},
"800": {
"value": "#22373F",
"type": "color"
},
"900": {
"value": "#162227",
"type": "color"
}
}
}
}