What color is #337B45?

#337B45 is a dark green. In RGB it is rgb(51, 123, 69), and in HSL hsl(135, 41%, 34%).

Is #337B45 accessible as text?

On white, #337B45 has a contrast ratio of 5.17:1 (passes WCAG AA for body text); on black it is 4.06:1 (fails). For text placed on #337B45, use white for the best readability.

What is the closest Tailwind color to #337B45?

The nearest Tailwind CSS token is emerald-700 (#007A55).

What colors go well with #337B45?

#337B45 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #7A3368. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #337B45 below.

Is #337B45 good for buttons?

#337B45 works well for buttons and highlights, but use white text on #337B45 — black text only reaches 4.06:1, below the 4.5:1 needed for normal-size labels.

Is #337B45 the same as CSS seagreen?

No — #337B45 is not the CSS named color seagreen, but seagreen (#2E8B57) is the closest CSS named color.

#337B45 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #337B45

Not just a swatch — here's how #337B45 works with other colors. Named schemes with #337B45 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #337B45 Secondary #4B6C3C Accent #AD6C00 Surface #EEEAD6 Anchor #3C2F20

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

Vintage Leather Lead · 5 colors

Lead #337B45 Secondary #754E1B Surface #E5DBC0 Accent #3C5140 Anchor #5B2321

Fern 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.

Modern Café Dominant · 5 colors

Dominant #337B45 Anchor #382B1E Surface #EDE4D0 Accent #879B6D Secondary #3A3833

Fern 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.

Berry & Cream Lead · 5 colors

Lead #337B45 Surface #F0E8D6 Anchor #612029 Accent #E5C3BA Secondary #342B2C

Fern Green sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #337B45 Secondary #839A86 Support #989286 Ink #17140F

Fern 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 Fern Green carrying the quiet middle.

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Color Lab

How #337B45 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 45/100

Neutral

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

Softness 43/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 48/100

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 65/100

High

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

Luxury 55/100

Moderate

Restrained and premium — deep, quiet, high-end packaging and fashion.

Brand distinctiveness 30/100

Low

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

UI accent fit 96/100

Very high

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

Surface fit 21/100

Low

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

Print safety 76/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #337B45

For UI

For branding

For interior

For fashion

People also use #337B45 with

Olive Drab Myrtle Green Byzantium Platinum Hunter 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 5.2:1. Use

Subtle surface Use #D3E7D8 for cards and hover fills. Tint 80

Avoid beside #337A5D — 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 #337B45 at work across the surfaces designers actually ship.

Website / UI

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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: #337B45;
  --color-base-rgb: 51 123 69;
  --color-base-oklch: oklch(52.3% 0.111 149.3);
  --color-50: #F4FBF6;
  --color-100: #E2F3E6;
  --color-200: #C6E7CE;
  --color-300: #9DD2AA;
  --color-400: #77BB88;
  --color-500: #569E68;
  --color-600: #477A54;
  --color-700: #37583F;
  --color-800: #273A2C;
  --color-900: #19241C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  fern-green: {
    50: '#F4FBF6',
    100: '#E2F3E6',
    200: '#C6E7CE',
    300: '#9DD2AA',
    400: '#77BB88',
    500: '#569E68',
    600: '#477A54',
    700: '#37583F',
    800: '#273A2C',
    900: '#19241C',
  },
}

$base: #337B45;
$base-ink: #FFFFFF;
$base-50: #F4FBF6;
$base-100: #E2F3E6;
$base-200: #C6E7CE;
$base-300: #9DD2AA;
$base-400: #77BB88;
$base-500: #569E68;
$base-600: #477A54;
$base-700: #37583F;
$base-800: #273A2C;
$base-900: #19241C;
$base-hover: #296237;
$base-subtle: #BDDCC5;

{
    "color": {
        "base": {
            "value": "#337B45",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4FBF6",
                "type": "color"
            },
            "100": {
                "value": "#E2F3E6",
                "type": "color"
            },
            "200": {
                "value": "#C6E7CE",
                "type": "color"
            },
            "300": {
                "value": "#9DD2AA",
                "type": "color"
            },
            "400": {
                "value": "#77BB88",
                "type": "color"
            },
            "500": {
                "value": "#569E68",
                "type": "color"
            },
            "600": {
                "value": "#477A54",
                "type": "color"
            },
            "700": {
                "value": "#37583F",
                "type": "color"
            },
            "800": {
                "value": "#273A2C",
                "type": "color"
            },
            "900": {
                "value": "#19241C",
                "type": "color"
            }
        }
    }
}

Palettes built on #337B45

Color Lab

Pairs with #337B45

UI roles & guardrails

In real applications

Scales

Every model

Export