What color is #033C3E?

#033C3E is a very dark, vivid cyan. In RGB it is rgb(3, 60, 62), and in HSL hsl(182, 91%, 13%).

Is #033C3E accessible as text?

On white, #033C3E has a contrast ratio of 12.21:1 (passes WCAG AA for body text); on black it is 1.72:1 (fails). For text placed on #033C3E, use white for the best readability.

What is the closest Tailwind color to #033C3E?

The nearest Tailwind CSS token is cyan-950 (#053345).

What colors go well with #033C3E?

#033C3E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #3F0503. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #033C3E below.

Is #033C3E good for buttons?

#033C3E works well for buttons and highlights, but use white text on #033C3E — black text only reaches 1.72:1, below the 4.5:1 needed for normal-size labels.

Is #033C3E the same as CSS darkslategray?

No — #033C3E is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#033C3E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #033C3E

Not just a swatch — here's how #033C3E works with other colors. Named schemes with #033C3E in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #033C3E Accent #A6C4BD Surface #E0DABE Secondary #9AA0A0 Anchor #1D3549

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 #033C3E Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

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

Vintage Leather Lead · 5 colors

Lead #033C3E Secondary #715017 Surface #E3DCC0 Accent #3A5143 Anchor #552340

Bottle 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.

Luxury Packaging Feature · 5 colors

Feature #033C3E Anchor #141210 Accent #B8AA4E Secondary #1D2C2C 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 #F6F4EF Accent #033C3E Secondary #4D5D5D Support #979286 Ink #16140F

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.

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Color Lab

How #033C3E 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 36/100

Cool

Reads cool and recessive — calming, technical, good for trust-led UI.

Softness 32/100

Low

Middle-weight — neither delicate nor heavy.

Depth 65/100

High

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

Naturalness 8/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 34/100

Low

A faint retro warmth without tipping into sepia.

Luxury 68/100

High

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

Brand distinctiveness 21/100

Low

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

UI accent fit 35/100

Low

Workable accent with care around contrast.

Surface fit 48/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 86/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #033C3E

For UI

For branding

For interior

For fashion

People also use #033C3E with

Dark Green Navy 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 12.2:1. Use

Subtle surface Use #B6EEF0 for cards and hover fills. Tint 80

Avoid beside #03293F — 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 #033C3E 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: #033C3E;
  --color-base-rgb: 3 60 62;
  --color-base-oklch: oklch(32.4% 0.054 198.6);
  --color-50: #F0FEFE;
  --color-100: #D8FCFD;
  --color-200: #B1F9FB;
  --color-300: #7DEEF2;
  --color-400: #4EDFE4;
  --color-500: #2AC5CB;
  --color-600: #28969A;
  --color-700: #236A6C;
  --color-800: #1B4546;
  --color-900: #122A2B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  bottle-green: {
    50: '#F0FEFE',
    100: '#D8FCFD',
    200: '#B1F9FB',
    300: '#7DEEF2',
    400: '#4EDFE4',
    500: '#2AC5CB',
    600: '#28969A',
    700: '#236A6C',
    800: '#1B4546',
    900: '#122A2B',
  },
}

$base: #033C3E;
$base-ink: #FFFFFF;
$base-50: #F0FEFE;
$base-100: #D8FCFD;
$base-200: #B1F9FB;
$base-300: #7DEEF2;
$base-400: #4EDFE4;
$base-500: #2AC5CB;
$base-600: #28969A;
$base-700: #236A6C;
$base-800: #1B4546;
$base-900: #122A2B;
$base-hover: #023133;
$base-subtle: #8EE7EA;

{
    "color": {
        "base": {
            "value": "#033C3E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEFE",
                "type": "color"
            },
            "100": {
                "value": "#D8FCFD",
                "type": "color"
            },
            "200": {
                "value": "#B1F9FB",
                "type": "color"
            },
            "300": {
                "value": "#7DEEF2",
                "type": "color"
            },
            "400": {
                "value": "#4EDFE4",
                "type": "color"
            },
            "500": {
                "value": "#2AC5CB",
                "type": "color"
            },
            "600": {
                "value": "#28969A",
                "type": "color"
            },
            "700": {
                "value": "#236A6C",
                "type": "color"
            },
            "800": {
                "value": "#1B4546",
                "type": "color"
            },
            "900": {
                "value": "#122A2B",
                "type": "color"
            }
        }
    }
}