What color is #666E2E?

#666E2E is a dark lime green. In RGB it is rgb(102, 110, 46), and in HSL hsl(68, 41%, 31%).

Is #666E2E accessible as text?

On white, #666E2E has a contrast ratio of 5.48:1 (passes WCAG AA for body text); on black it is 3.83:1 (fails). For text placed on #666E2E, use white for the best readability.

What is the closest Tailwind color to #666E2E?

The nearest Tailwind CSS token is lime-700 (#497D00).

What colors go well with #666E2E?

#666E2E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #372F6F. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #666E2E below.

Is #666E2E good for buttons?

#666E2E works well for buttons and highlights, but use white text on #666E2E — black text only reaches 3.83:1, below the 4.5:1 needed for normal-size labels.

Is #666E2E the same as CSS darkolivegreen?

No — #666E2E is not the CSS named color darkolivegreen, but darkolivegreen (#556B2F) is the closest CSS named color.

#666E2E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #666E2E

Not just a swatch — here's how #666E2E works with other colors. Named schemes with #666E2E in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

Dominant #666E2E Secondary #B06905 Accent #6C7B49 Surface #F2ECDD Anchor #3A2B1F

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

Modern Café Dominant · 5 colors

Dominant #666E2E Anchor #392B1F Surface #EEE3D0 Accent #8B9A6A Secondary #3B3833

Dark Olive Green anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

Vintage Leather Lead · 5 colors

Lead #666E2E Secondary #774C1E Surface #E7DBC0 Accent #3E513E Anchor #5B2325

Dark Olive 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.

Botanical Studio Lead · 5 colors

Lead #666E2E Secondary #516A38 Accent #B06905 Surface #EFE9D6 Anchor #3D2F21

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

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #666E2E Secondary #90947F Support #999186 Ink #17140F

Dark Olive 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 Dark Olive Green carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #666E2E 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 61/100

Neutral

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

Softness 45/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 48/100

Moderate

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

Naturalness 89/100

Very high

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

Vintage feel 84/100

Very high

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

Luxury 54/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 24/100

Low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 89/100

Very high

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

Surface fit 27/100

Low

Too saturated or mid-toned for big areas — keep it to accents.

Print safety 83/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #666E2E

For UI

For branding

For interior

For fashion

People also use #666E2E with

Olive Brown Dark Olive Green Yale Blue Platinum Army Green

UI roles & guardrails

Primary action Safe as a filled button with white label. AA

Body text Passes on white at 16px and above. Pass

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

Background Pair with white text at 5.5:1. Use

Subtle surface Use #E3E6D1 for cards and hover fills. Tint 80

Avoid beside #516F2F — 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 #666E2E at work across the surfaces designers actually ship.

Website / UI

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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: #666E2E;
  --color-base-rgb: 102 110 46;
  --color-base-oklch: oklch(51.7% 0.088 115.5);
  --color-50: #FAFBF4;
  --color-100: #F1F3E2;
  --color-200: #E2E7C6;
  --color-300: #CBD29D;
  --color-400: #B2BB77;
  --color-500: #959E56;
  --color-600: #747A47;
  --color-700: #545837;
  --color-800: #383A27;
  --color-900: #232419;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  dark-olive-green: {
    50: '#FAFBF4',
    100: '#F1F3E2',
    200: '#E2E7C6',
    300: '#CBD29D',
    400: '#B2BB77',
    500: '#959E56',
    600: '#747A47',
    700: '#545837',
    800: '#383A27',
    900: '#232419',
  },
}

$base: #666E2E;
$base-ink: #FFFFFF;
$base-50: #FAFBF4;
$base-100: #F1F3E2;
$base-200: #E2E7C6;
$base-300: #CBD29D;
$base-400: #B2BB77;
$base-500: #959E56;
$base-600: #747A47;
$base-700: #545837;
$base-800: #383A27;
$base-900: #232419;
$base-hover: #525925;
$base-subtle: #D6DBBA;

{
    "color": {
        "base": {
            "value": "#666E2E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FAFBF4",
                "type": "color"
            },
            "100": {
                "value": "#F1F3E2",
                "type": "color"
            },
            "200": {
                "value": "#E2E7C6",
                "type": "color"
            },
            "300": {
                "value": "#CBD29D",
                "type": "color"
            },
            "400": {
                "value": "#B2BB77",
                "type": "color"
            },
            "500": {
                "value": "#959E56",
                "type": "color"
            },
            "600": {
                "value": "#747A47",
                "type": "color"
            },
            "700": {
                "value": "#545837",
                "type": "color"
            },
            "800": {
                "value": "#383A27",
                "type": "color"
            },
            "900": {
                "value": "#232419",
                "type": "color"
            }
        }
    }
}

Palettes built on #666E2E

Color Lab

Pairs with #666E2E

UI roles & guardrails

In real applications

Scales

Every model

Export