What color is #0C3F2B?

#0C3F2B is a very dark teal-green. In RGB it is rgb(12, 63, 43), and in HSL hsl(156, 68%, 15%).

Is #0C3F2B accessible as text?

On white, #0C3F2B has a contrast ratio of 11.92:1 (passes WCAG AA for body text); on black it is 1.76:1 (fails). For text placed on #0C3F2B, use white for the best readability.

What is the closest Tailwind color to #0C3F2B?

The nearest Tailwind CSS token is emerald-900 (#004F3B).

What colors go well with #0C3F2B?

#0C3F2B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #400C21. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #0C3F2B below.

Is #0C3F2B good for buttons?

#0C3F2B works well for buttons and highlights, but use white text on #0C3F2B — black text only reaches 1.76:1, below the 4.5:1 needed for normal-size labels.

Is #0C3F2B the same as CSS darkslategray?

No — #0C3F2B 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.

#0C3F2B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #0C3F2B

Not just a swatch — here's how #0C3F2B works with other colors. Named schemes with #0C3F2B in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #0C3F2B Secondary #496C3E Accent #AB6D00 Surface #EEEAD6 Anchor #3C2F20

Bottle 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 #0C3F2B Accent #A7C4BB Surface #E1D9BE Secondary #9AA0A0 Anchor #1B3648

Bottle 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 #0C3F2B Secondary #ADB4B7 Surface #F1F2F0 Support #7895A3 Anchor #2D3236

Bottle 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 #0C3F2B Anchor #141210 Accent #BEA74C Secondary #202C26 Surface #F1EDE3

Bottle 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 #0C3F2B Secondary #505F57 Support #989286 Ink #17140F

Bottle 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 Bottle Green carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #0C3F2B 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 32/100

Low

Firm and assertive — carries weight and contrast.

Depth 65/100

High

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

Naturalness 57/100

Moderate

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

Vintage feel 42/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 68/100

High

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

Brand distinctiveness 25/100

Low

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

UI accent fit 39/100

Low

Workable accent with care around contrast.

Surface fit 44/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 87/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #0C3F2B

For UI

For branding

For interior

For fashion

People also use #0C3F2B with

Dark Green Gunmetal Gray Oxblood Platinum Dark Slate Gray

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 11.9:1. Use

Subtle surface Use #BEE9D8 for cards and hover fills. Tint 80

Avoid beside #0C403D — 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 #0C3F2B at work across the surfaces designers actually ship.

Website / UI

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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: #0C3F2B;
  --color-base-rgb: 12 63 43;
  --color-base-oklch: oklch(32.9% 0.064 162.4);
  --color-50: #F2FDF8;
  --color-100: #DCF9EE;
  --color-200: #BBF2DC;
  --color-300: #8CE3C0;
  --color-400: #61D1A4;
  --color-500: #3FB686;
  --color-600: #378B69;
  --color-700: #2C634D;
  --color-800: #204134;
  --color-900: #152820;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  bottle-green: {
    50: '#F2FDF8',
    100: '#DCF9EE',
    200: '#BBF2DC',
    300: '#8CE3C0',
    400: '#61D1A4',
    500: '#3FB686',
    600: '#378B69',
    700: '#2C634D',
    800: '#204134',
    900: '#152820',
  },
}

$base: #0C3F2B;
$base-ink: #FFFFFF;
$base-50: #F2FDF8;
$base-100: #DCF9EE;
$base-200: #BBF2DC;
$base-300: #8CE3C0;
$base-400: #61D1A4;
$base-500: #3FB686;
$base-600: #378B69;
$base-700: #2C634D;
$base-800: #204134;
$base-900: #152820;
$base-hover: #0A3323;
$base-subtle: #9CE0C5;

{
    "color": {
        "base": {
            "value": "#0C3F2B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FDF8",
                "type": "color"
            },
            "100": {
                "value": "#DCF9EE",
                "type": "color"
            },
            "200": {
                "value": "#BBF2DC",
                "type": "color"
            },
            "300": {
                "value": "#8CE3C0",
                "type": "color"
            },
            "400": {
                "value": "#61D1A4",
                "type": "color"
            },
            "500": {
                "value": "#3FB686",
                "type": "color"
            },
            "600": {
                "value": "#378B69",
                "type": "color"
            },
            "700": {
                "value": "#2C634D",
                "type": "color"
            },
            "800": {
                "value": "#204134",
                "type": "color"
            },
            "900": {
                "value": "#152820",
                "type": "color"
            }
        }
    }
}

Palettes built on #0C3F2B

Color Lab

Pairs with #0C3F2B

UI roles & guardrails

In real applications

Scales

Every model

Export