What color is #257643?

#257643 is a dark green. In RGB it is rgb(37, 118, 67), and in HSL hsl(142, 52%, 30%).

Is #257643 accessible as text?

On white, #257643 has a contrast ratio of 5.60:1 (passes WCAG AA for body text); on black it is 3.75:1 (fails). For text placed on #257643, use white for the best readability.

What is the closest Tailwind color to #257643?

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

What colors go well with #257643?

#257643 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #742557. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #257643 below.

Is #257643 good for buttons?

#257643 works well for buttons and highlights, but use white text on #257643 — black text only reaches 3.75:1, below the 4.5:1 needed for normal-size labels.

Is #257643 the same as CSS darkolivegreen?

No — #257643 is not the CSS named color darkolivegreen, but darkolivegreen (#556B2F) is the closest CSS named color.

#257643 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #257643

Not just a swatch — here's how #257643 works with other colors. Named schemes with #257643 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #257643 Secondary #4B6C3C Accent #AC6C00 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.

Coastal Morning Lead · 5 colors

Lead #257643 Accent #A8C4BA Surface #E1D9BE Secondary #9AA0A0 Anchor #1A3648

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

Vintage Leather Lead · 5 colors

Lead #257643 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.

Berry & Cream Lead · 5 colors

Lead #257643 Surface #F0E8D6 Anchor #612028 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 #257643 Secondary #7C9582 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.

Build a working theme in the generator →

Color Lab

How #257643 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 43/100

Neutral

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

Softness 42/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 50/100

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 62/100

High

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

Luxury 57/100

Moderate

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

Brand distinctiveness 30/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 96/100

Very high

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

Surface fit 19/100

Very 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 #257643

For UI

For branding

For interior

For fashion

People also use #257643 with

Forest Green 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 5.6:1. Use

Subtle surface Use #CEE9D8 for cards and hover fills. Tint 80

Avoid beside #25745C — 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 #257643 at work across the surfaces designers actually ship.

Website / UI

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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: #257643;
  --color-base-rgb: 37 118 67;
  --color-base-oklch: oklch(50.4% 0.112 152.1);
  --color-50: #F3FCF6;
  --color-100: #DFF6E8;
  --color-200: #C1EBD1;
  --color-300: #96D9AF;
  --color-400: #6EC48E;
  --color-500: #4DA86E;
  --color-600: #418158;
  --color-700: #325C42;
  --color-800: #243D2D;
  --color-900: #18261D;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  fern-green: {
    50: '#F3FCF6',
    100: '#DFF6E8',
    200: '#C1EBD1',
    300: '#96D9AF',
    400: '#6EC48E',
    500: '#4DA86E',
    600: '#418158',
    700: '#325C42',
    800: '#243D2D',
    900: '#18261D',
  },
}

$base: #257643;
$base-ink: #FFFFFF;
$base-50: #F3FCF6;
$base-100: #DFF6E8;
$base-200: #C1EBD1;
$base-300: #96D9AF;
$base-400: #6EC48E;
$base-500: #4DA86E;
$base-600: #418158;
$base-700: #325C42;
$base-800: #243D2D;
$base-900: #18261D;
$base-hover: #1D5D35;
$base-subtle: #B4DFC4;

{
    "color": {
        "base": {
            "value": "#257643",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FCF6",
                "type": "color"
            },
            "100": {
                "value": "#DFF6E8",
                "type": "color"
            },
            "200": {
                "value": "#C1EBD1",
                "type": "color"
            },
            "300": {
                "value": "#96D9AF",
                "type": "color"
            },
            "400": {
                "value": "#6EC48E",
                "type": "color"
            },
            "500": {
                "value": "#4DA86E",
                "type": "color"
            },
            "600": {
                "value": "#418158",
                "type": "color"
            },
            "700": {
                "value": "#325C42",
                "type": "color"
            },
            "800": {
                "value": "#243D2D",
                "type": "color"
            },
            "900": {
                "value": "#18261D",
                "type": "color"
            }
        }
    }
}

Palettes built on #257643

Color Lab

Pairs with #257643

UI roles & guardrails

In real applications

Scales

Every model

Export