What color is #669E63?

#669E63 is a medium, muted green. In RGB it is rgb(102, 158, 99), and in HSL hsl(117, 23%, 50%).

Is #669E63 accessible as text?

On white, #669E63 has a contrast ratio of 3.16:1 (fails WCAG AA for body text); on black it is 6.64:1 (passes). For text placed on #669E63, use black for the best readability.

What is the closest Tailwind color to #669E63?

The nearest Tailwind CSS token is emerald-600 (#009966).

What colors go well with #669E63?

#669E63 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #9A629D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #669E63 below.

Is #669E63 good for buttons?

#669E63 works well for buttons and highlights, but use black text on #669E63 — white text only reaches 3.16:1, below the 4.5:1 needed for normal-size labels.

Is #669E63 the same as CSS mediumseagreen?

No — #669E63 is not the CSS named color mediumseagreen, but mediumseagreen (#3CB371) is the closest CSS named color.

#669E63 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #669E63

Not just a swatch — here's how #669E63 works with other colors. Named schemes with #669E63 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #669E63 Secondary #4C6B3B Accent #AD6B00 Surface #EEEAD6 Anchor #3C2F20

Russian Green leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.

Coastal Morning Lead · 5 colors

Lead #669E63 Accent #A8C4BA Surface #E2D9BE Secondary #9AA09F Anchor #193648

Russian Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Japanese Sand Base · 5 colors

Base #669E63 Surface #EEE9DC Highlight #F5F1E7 Secondary #B7B09F Ink #2B2723

Russian 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.

Warm Autumn Interior Dominant · 5 colors

Dominant #669E63 Secondary #AD6B00 Accent #687C4C Surface #F2EDDD Anchor #3A2B1E

This palette keeps Russian Green as the dominant warm neutral, balanced by muted terracotta and olive earth tones and grounded by a deep espresso anchor.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #669E63 Secondary #ACBFAA Support #989286 Ink #17140F

Russian 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 Russian Green carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #669E63 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.

Warmth 48/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 53/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 35/100

Low

Mid depth — usable as an accent or a muted ground.

Naturalness 100/100

Very high

Organic, earthy character — at home in wellness, food and craft brands.

Vintage feel 62/100

High

Faded, nostalgic quality — editorial, heritage and retro work.

Luxury 43/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 40/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 75/100

High

Strong interactive accent — visible and can carry a legible label.

Surface fit 35/100

Low

Usable as a tinted surface in measured doses.

Print safety 77/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #669E63

For UI

For branding

For interior

For fashion

People also use #669E63 with

Sage Russian Green Amethyst Platinum Castleton Green

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AA

Body text Do not use for body copy on light surfaces. Avoid

Large display Fine for headings 24px+ on white. Pass

Background Pair with #141310 text at 5.9:1. Use

Subtle surface Use #E2EAE1 for cards and hover fills. Tint 80

Avoid beside #629D73 — the hue gap is too small to read as intentional. Clash

In real applications

Not a swatch to memorise — a color to build with. Here is #669E63 at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

Dashboard

Revenue

$48.2k ▲ 12%

Brand

AVELINE

Studio

Poster

Nov 14 · 8PM

NIGHT
MARKET

Packaging

BLOOM

Botanical Wash

250 ml

Interior

Every model

Export

:root {
  --color-base: #669E63;
  --color-base-rgb: 102 158 99;
  --color-base-oklch: oklch(64.5% 0.104 143.1);
  --color-50: #F6F9F5;
  --color-100: #E6F0E6;
  --color-200: #CEE0CD;
  --color-300: #AAC6A9;
  --color-400: #88AC86;
  --color-500: #688F66;
  --color-600: #546F53;
  --color-700: #3F513E;
  --color-800: #2B362B;
  --color-900: #1C221B;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  russian-green: {
    50: '#F6F9F5',
    100: '#E6F0E6',
    200: '#CEE0CD',
    300: '#AAC6A9',
    400: '#88AC86',
    500: '#688F66',
    600: '#546F53',
    700: '#3F513E',
    800: '#2B362B',
    900: '#1C221B',
  },
}

$base: #669E63;
$base-ink: #141310;
$base-50: #F6F9F5;
$base-100: #E6F0E6;
$base-200: #CEE0CD;
$base-300: #AAC6A9;
$base-400: #88AC86;
$base-500: #688F66;
$base-600: #546F53;
$base-700: #3F513E;
$base-800: #2B362B;
$base-900: #1C221B;
$base-hover: #517D4F;
$base-subtle: #D3DFD2;

{
    "color": {
        "base": {
            "value": "#669E63",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6F9F5",
                "type": "color"
            },
            "100": {
                "value": "#E6F0E6",
                "type": "color"
            },
            "200": {
                "value": "#CEE0CD",
                "type": "color"
            },
            "300": {
                "value": "#AAC6A9",
                "type": "color"
            },
            "400": {
                "value": "#88AC86",
                "type": "color"
            },
            "500": {
                "value": "#688F66",
                "type": "color"
            },
            "600": {
                "value": "#546F53",
                "type": "color"
            },
            "700": {
                "value": "#3F513E",
                "type": "color"
            },
            "800": {
                "value": "#2B362B",
                "type": "color"
            },
            "900": {
                "value": "#1C221B",
                "type": "color"
            }
        }
    }
}

Palettes built on #669E63

Color Lab

Pairs with #669E63

UI roles & guardrails

In real applications

Scales

Every model

Export