#63B261 is a mid-toned, temperate green. On the Color Lab it reads organic and grounded. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #63B261 works with other colors. Named schemes with #63B261 in its natural role, and a note on why the supporting colors balance it.
Medium Sea Green leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.
Medium Sea Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Medium Sea Green sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.
This palette keeps Medium Sea Green as the dominant warm neutral, balanced by muted terracotta and olive earth tones and grounded by a deep espresso anchor.
Medium 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 Medium Sea Green carrying the quiet middle.
How #63B261 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 #63B261 at work across the surfaces designers actually ship.
:root {
--color-base: #63B261;
--color-base-rgb: 99 178 97;
--color-base-oklch: oklch(69.3% 0.139 143.4);
--color-50: #F5FAF4;
--color-100: #E4F2E3;
--color-200: #C9E4C8;
--color-300: #A2CEA2;
--color-400: #7EB57D;
--color-500: #5D985C;
--color-600: #4C764C;
--color-700: #3A553A;
--color-800: #293928;
--color-900: #1A231A;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
medium-sea-green: {
50: '#F5FAF4',
100: '#E4F2E3',
200: '#C9E4C8',
300: '#A2CEA2',
400: '#7EB57D',
500: '#5D985C',
600: '#4C764C',
700: '#3A553A',
800: '#293928',
900: '#1A231A',
},
}
$base: #63B261; $base-ink: #141310; $base-50: #F5FAF4; $base-100: #E4F2E3; $base-200: #C9E4C8; $base-300: #A2CEA2; $base-400: #7EB57D; $base-500: #5D985C; $base-600: #4C764C; $base-700: #3A553A; $base-800: #293928; $base-900: #1A231A; $base-hover: #4A9449; $base-subtle: #D3E5D3;
{
"color": {
"base": {
"value": "#63B261",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F5FAF4",
"type": "color"
},
"100": {
"value": "#E4F2E3",
"type": "color"
},
"200": {
"value": "#C9E4C8",
"type": "color"
},
"300": {
"value": "#A2CEA2",
"type": "color"
},
"400": {
"value": "#7EB57D",
"type": "color"
},
"500": {
"value": "#5D985C",
"type": "color"
},
"600": {
"value": "#4C764C",
"type": "color"
},
"700": {
"value": "#3A553A",
"type": "color"
},
"800": {
"value": "#293928",
"type": "color"
},
"900": {
"value": "#1A231A",
"type": "color"
}
}
}
}