What color is #577B21?

#577B21 is a dark green. In RGB it is rgb(87, 123, 33), and in HSL hsl(84, 58%, 31%).

Is #577B21 accessible as text?

On white, #577B21 has a contrast ratio of 4.93:1 (passes WCAG AA for body text); on black it is 4.26:1 (fails). For text placed on #577B21, use white for the best readability.

What is the closest Tailwind color to #577B21?

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

What colors go well with #577B21?

#577B21 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #46217D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #577B21 below.

Is #577B21 good for buttons?

#577B21 works well for buttons and highlights, but use white text on #577B21 — black text only reaches 4.26:1, below the 4.5:1 needed for normal-size labels.

Is #577B21 the same as CSS darkolivegreen?

No — #577B21 is not the CSS named color darkolivegreen, but darkolivegreen (#556B2F) is the closest CSS named color.

#577B21 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #577B21

Not just a swatch — here's how #577B21 works with other colors. Named schemes with #577B21 in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

Dominant #577B21 Secondary #AF6A00 Accent #6A7B4B Surface #F2ECDD Anchor #3A2B1E

This palette keeps Avocado 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 #577B21 Anchor #392B1F Surface #EEE4D0 Accent #899A6B Secondary #3A3833

Avocado 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 #577B21 Secondary #764D1D Surface #E6DBC0 Accent #3D513F Anchor #5B2324

Avocado 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 #577B21 Secondary #4F6B39 Accent #AF6A00 Surface #EFE9D6 Anchor #3D2F21

Avocado 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 #577B21 Secondary #8F9D81 Support #999286 Ink #17140F

Avocado 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 Avocado carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #577B21 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 57/100

Neutral

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

Softness 43/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 47/100

Moderate

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 67/100

High

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

Luxury 53/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 34/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 99/100

Very high

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

Surface fit 18/100

Very low

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

Print safety 73/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #577B21

For UI

For branding

For interior

For fashion

People also use #577B21 with

Dark Goldenrod Green Indigo 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 4.9:1. Use

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

Avoid beside #3A7D21 — 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 #577B21 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: #577B21;
  --color-base-rgb: 87 123 33;
  --color-base-oklch: oklch(53.7% 0.124 128.9);
  --color-50: #F8FCF2;
  --color-100: #EDF7DE;
  --color-200: #DBEEBF;
  --color-300: #BFDD92;
  --color-400: #A3C969;
  --color-500: #85AD47;
  --color-600: #68853D;
  --color-700: #4C5F30;
  --color-800: #333E23;
  --color-900: #202617;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  avocado: {
    50: '#F8FCF2',
    100: '#EDF7DE',
    200: '#DBEEBF',
    300: '#BFDD92',
    400: '#A3C969',
    500: '#85AD47',
    600: '#68853D',
    700: '#4C5F30',
    800: '#333E23',
    900: '#202617',
  },
}

$base: #577B21;
$base-ink: #FFFFFF;
$base-50: #F8FCF2;
$base-100: #EDF7DE;
$base-200: #DBEEBF;
$base-300: #BFDD92;
$base-400: #A3C969;
$base-500: #85AD47;
$base-600: #68853D;
$base-700: #4C5F30;
$base-800: #333E23;
$base-900: #202617;
$base-hover: #47641B;
$base-subtle: #CFE1B3;

{
    "color": {
        "base": {
            "value": "#577B21",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F8FCF2",
                "type": "color"
            },
            "100": {
                "value": "#EDF7DE",
                "type": "color"
            },
            "200": {
                "value": "#DBEEBF",
                "type": "color"
            },
            "300": {
                "value": "#BFDD92",
                "type": "color"
            },
            "400": {
                "value": "#A3C969",
                "type": "color"
            },
            "500": {
                "value": "#85AD47",
                "type": "color"
            },
            "600": {
                "value": "#68853D",
                "type": "color"
            },
            "700": {
                "value": "#4C5F30",
                "type": "color"
            },
            "800": {
                "value": "#333E23",
                "type": "color"
            },
            "900": {
                "value": "#202617",
                "type": "color"
            }
        }
    }
}

Palettes built on #577B21

Color Lab

Pairs with #577B21

UI roles & guardrails

In real applications

Scales

Every model

Export