What color is #034F2A?

#034F2A is a very dark, vivid teal-green. In RGB it is rgb(3, 79, 42), and in HSL hsl(151, 93%, 16%).

Is #034F2A accessible as text?

On white, #034F2A has a contrast ratio of 9.74:1 (passes WCAG AA for body text); on black it is 2.16:1 (fails). For text placed on #034F2A, use white for the best readability.

What is the closest Tailwind color to #034F2A?

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

What colors go well with #034F2A?

#034F2A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #4F0328. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #034F2A below.

Is #034F2A good for buttons?

#034F2A works well for buttons and highlights, but use white text on #034F2A — black text only reaches 2.16:1, below the 4.5:1 needed for normal-size labels.

Is #034F2A the same as CSS darkslategray?

No — #034F2A 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.

#034F2A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #034F2A

Not just a swatch — here's how #034F2A works with other colors. Named schemes with #034F2A in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #034F2A 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.

Coastal Morning Lead · 5 colors

Lead #034F2A Accent #A8C4BB 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.

Nordic Calm Accent · 5 colors

Accent #034F2A Secondary #ADB4B7 Surface #F1F2F0 Support #7895A3 Anchor #2D3236

Castleton Green keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Luxury Packaging Feature · 5 colors

Feature #034F2A Anchor #141210 Accent #BFA74B Secondary #212C24 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.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #034F2A Secondary #5A6E60 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.

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Color Lab

How #034F2A 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 34/100

Low

Middle-weight — neither delicate nor heavy.

Depth 62/100

High

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

Naturalness 91/100

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

High

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

Surface fit 33/100

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 #034F2A

For UI

For branding

For interior

For fashion

People also use #034F2A 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 9.7:1. Use

Subtle surface Use #B7F1D5 for cards and hover fills. Tint 80

Avoid beside #034F43 — 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 #034F2A 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: #034F2A;
  --color-base-rgb: 3 79 42;
  --color-base-oklch: oklch(37.6% 0.092 154.5);
  --color-50: #F0FEF8;
  --color-100: #D8FDEB;
  --color-200: #B1FCD7;
  --color-300: #7CF4BA;
  --color-400: #4CE69C;
  --color-500: #29CC7D;
  --color-600: #279B63;
  --color-700: #226D49;
  --color-800: #1A4731;
  --color-900: #122B1F;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  castleton-green: {
    50: '#F0FEF8',
    100: '#D8FDEB',
    200: '#B1FCD7',
    300: '#7CF4BA',
    400: '#4CE69C',
    500: '#29CC7D',
    600: '#279B63',
    700: '#226D49',
    800: '#1A4731',
    900: '#122B1F',
  },
}

$base: #034F2A;
$base-ink: #FFFFFF;
$base-50: #F0FEF8;
$base-100: #D8FDEB;
$base-200: #B1FCD7;
$base-300: #7CF4BA;
$base-400: #4CE69C;
$base-500: #29CC7D;
$base-600: #279B63;
$base-700: #226D49;
$base-800: #1A4731;
$base-900: #122B1F;
$base-hover: #023F22;
$base-subtle: #91ECC0;

{
    "color": {
        "base": {
            "value": "#034F2A",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEF8",
                "type": "color"
            },
            "100": {
                "value": "#D8FDEB",
                "type": "color"
            },
            "200": {
                "value": "#B1FCD7",
                "type": "color"
            },
            "300": {
                "value": "#7CF4BA",
                "type": "color"
            },
            "400": {
                "value": "#4CE69C",
                "type": "color"
            },
            "500": {
                "value": "#29CC7D",
                "type": "color"
            },
            "600": {
                "value": "#279B63",
                "type": "color"
            },
            "700": {
                "value": "#226D49",
                "type": "color"
            },
            "800": {
                "value": "#1A4731",
                "type": "color"
            },
            "900": {
                "value": "#122B1F",
                "type": "color"
            }
        }
    }
}

Palettes built on #034F2A

Color Lab

Pairs with #034F2A

UI roles & guardrails

In real applications

Scales

Every model

Export