What color is #054E27?

#054E27 is a very dark, vivid teal-green. In RGB it is rgb(5, 78, 39), and in HSL hsl(148, 88%, 16%).

Is #054E27 accessible as text?

On white, #054E27 has a contrast ratio of 9.88:1 (passes WCAG AA for body text); on black it is 2.13:1 (fails). For text placed on #054E27, use white for the best readability.

What is the closest Tailwind color to #054E27?

The nearest Tailwind CSS token is green-900 (#0D542B).

What colors go well with #054E27?

#054E27 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #4D052B. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #054E27 below.

Is #054E27 good for buttons?

#054E27 works well for buttons and highlights, but use white text on #054E27 — black text only reaches 2.13:1, below the 4.5:1 needed for normal-size labels.

Is #054E27 the same as CSS darkslategray?

No — #054E27 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

#054E27 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #054E27

Not just a swatch — here's how #054E27 works with other colors. Named schemes with #054E27 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #054E27 Secondary #4B6C3D Accent #AC6C00 Surface #EEEAD6 Anchor #3C2F20

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

Luxury Packaging Feature · 5 colors

Feature #054E27 Anchor #141210 Accent #BFA74B Secondary #222C24 Surface #F1EDE3

Castleton Green carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.

Moody Editorial Color · 5 colors

Color #054E27 Anchor #292A2E Secondary #6C6F74 Surface #EBE6DA Accent #002C1E

Castleton Green adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Castleton Green.

Coastal Morning Lead · 5 colors

Lead #054E27 Accent #A8C4BA Surface #E1D9BE Secondary #9AA0A0 Anchor #1A3648

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

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #054E27 Secondary #596D5E Support #989286 Ink #17140F

Castleton 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 Castleton Green carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #054E27 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 44/100

Neutral

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

Softness 33/100

Low

Middle-weight — neither delicate nor heavy.

Depth 62/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 95/100

Very high

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

Vintage feel 54/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 67/100

High

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

Brand distinctiveness 36/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 60/100

Moderate

Workable accent with care around contrast.

Surface fit 32/100

Low

Usable as a tinted surface in measured doses.

Print safety 80/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #054E27

For UI

For branding

For interior

For fashion

People also use #054E27 with

Green Brunswick Green Oxblood Platinum Hunter Green

UI roles & guardrails

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

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 9.9:1. Use

Subtle surface Use #B9EFD2 for cards and hover fills. Tint 80

Avoid beside #054D3E — 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 #054E27 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: #054E27;
  --color-base-rgb: 5 78 39;
  --color-base-oklch: oklch(37.3% 0.093 152.8);
  --color-50: #F0FEF7;
  --color-100: #D8FDE9;
  --color-200: #B2FAD4;
  --color-300: #7FF0B4;
  --color-400: #50E294;
  --color-500: #2DC875;
  --color-600: #2A985D;
  --color-700: #246B45;
  --color-800: #1B462F;
  --color-900: #132B1E;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  castleton-green: {
    50: '#F0FEF7',
    100: '#D8FDE9',
    200: '#B2FAD4',
    300: '#7FF0B4',
    400: '#50E294',
    500: '#2DC875',
    600: '#2A985D',
    700: '#246B45',
    800: '#1B462F',
    900: '#132B1E',
  },
}

$base: #054E27;
$base-ink: #FFFFFF;
$base-50: #F0FEF7;
$base-100: #D8FDE9;
$base-200: #B2FAD4;
$base-300: #7FF0B4;
$base-400: #50E294;
$base-500: #2DC875;
$base-600: #2A985D;
$base-700: #246B45;
$base-800: #1B462F;
$base-900: #132B1E;
$base-hover: #043D1F;
$base-subtle: #94EABC;

{
    "color": {
        "base": {
            "value": "#054E27",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEF7",
                "type": "color"
            },
            "100": {
                "value": "#D8FDE9",
                "type": "color"
            },
            "200": {
                "value": "#B2FAD4",
                "type": "color"
            },
            "300": {
                "value": "#7FF0B4",
                "type": "color"
            },
            "400": {
                "value": "#50E294",
                "type": "color"
            },
            "500": {
                "value": "#2DC875",
                "type": "color"
            },
            "600": {
                "value": "#2A985D",
                "type": "color"
            },
            "700": {
                "value": "#246B45",
                "type": "color"
            },
            "800": {
                "value": "#1B462F",
                "type": "color"
            },
            "900": {
                "value": "#132B1E",
                "type": "color"
            }
        }
    }
}