#338D63 is a mid-toned, cool teal-green. On the Color Lab it reads organic and grounded, with a faded, vintage edge. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #338D63 works with other colors. Named schemes with #338D63 in its natural role, and a note on why the supporting colors balance it.
Sea Green leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.
Sea Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Sea Green plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Sea Green sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Sea Green 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 Sea Green carrying the quiet middle.
How #338D63 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 #338D63 at work across the surfaces designers actually ship.
:root {
--color-base: #338D63;
--color-base-rgb: 51 141 99;
--color-base-oklch: oklch(57.8% 0.108 159.7);
--color-50: #F3FBF8;
--color-100: #E0F5EB;
--color-200: #C3E9D7;
--color-300: #99D6BA;
--color-400: #72C09C;
--color-500: #51A47D;
--color-600: #447E63;
--color-700: #345A49;
--color-800: #253C31;
--color-900: #18251F;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
sea-green: {
50: '#F3FBF8',
100: '#E0F5EB',
200: '#C3E9D7',
300: '#99D6BA',
400: '#72C09C',
500: '#51A47D',
600: '#447E63',
700: '#345A49',
800: '#253C31',
900: '#18251F',
},
}
$base: #338D63; $base-ink: #141310; $base-50: #F3FBF8; $base-100: #E0F5EB; $base-200: #C3E9D7; $base-300: #99D6BA; $base-400: #72C09C; $base-500: #51A47D; $base-600: #447E63; $base-700: #345A49; $base-800: #253C31; $base-900: #18251F; $base-hover: #297250; $base-subtle: #BFE1D1;
{
"color": {
"base": {
"value": "#338D63",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3FBF8",
"type": "color"
},
"100": {
"value": "#E0F5EB",
"type": "color"
},
"200": {
"value": "#C3E9D7",
"type": "color"
},
"300": {
"value": "#99D6BA",
"type": "color"
},
"400": {
"value": "#72C09C",
"type": "color"
},
"500": {
"value": "#51A47D",
"type": "color"
},
"600": {
"value": "#447E63",
"type": "color"
},
"700": {
"value": "#345A49",
"type": "color"
},
"800": {
"value": "#253C31",
"type": "color"
},
"900": {
"value": "#18251F",
"type": "color"
}
}
}
}