What color is #003E37?

#003E37 is a very dark, vivid teal. In RGB it is rgb(0, 62, 55), and in HSL hsl(173, 100%, 12%).

Is #003E37 accessible as text?

On white, #003E37 has a contrast ratio of 12.04:1 (passes WCAG AA for body text); on black it is 1.74:1 (fails). For text placed on #003E37, use white for the best readability.

What is the closest Tailwind color to #003E37?

The nearest Tailwind CSS token is teal-950 (#022F2E).

What colors go well with #003E37?

#003E37 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #3D0007. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #003E37 below.

Is #003E37 good for buttons?

#003E37 works well for buttons and highlights, but use white text on #003E37 — black text only reaches 1.74:1, below the 4.5:1 needed for normal-size labels.

Is #003E37 the same as CSS darkslategray?

No — #003E37 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#003E37 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #003E37

Not just a swatch — here's how #003E37 works with other colors. Named schemes with #003E37 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #003E37 Accent #A7C4BC Surface #E0DABE Secondary #9AA0A0 Anchor #1C3549

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 #003E37 Secondary #AEB4B7 Surface #F1F2F0 Support #7994A4 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 #003E37 Secondary #724F18 Surface #E4DCC0 Accent #3A5142 Anchor #5B241E

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 #003E37 Anchor #141210 Accent #BAA94D Secondary #1E2C2A 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 #003E37 Secondary #4E5E5B 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.

Build a working theme in the generator →

Color Lab

How #003E37 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 38/100

Neutral

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

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 23/100

Low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 37/100

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 23/100

Low

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

UI accent fit 37/100

Low

Workable accent with care around contrast.

Surface fit 46/100

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 #003E37

For UI

For branding

For interior

For fashion

People also use #003E37 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 12.0:1. Use

Subtle surface Use #B2F2EB for cards and hover fills. Tint 80

Avoid beside #00303D — 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 #003E37 at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

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: #003E37;
  --color-base-rgb: 0 62 55;
  --color-base-oklch: oklch(32.7% 0.058 182.5);
  --color-50: #F0FEFD;
  --color-100: #D8FDF9;
  --color-200: #B1FCF3;
  --color-300: #77F8E9;
  --color-400: #46ECD8;
  --color-500: #22D2BE;
  --color-600: #239F91;
  --color-700: #1F7066;
  --color-800: #184843;
  --color-900: #112C29;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  bottle-green: {
    50: '#F0FEFD',
    100: '#D8FDF9',
    200: '#B1FCF3',
    300: '#77F8E9',
    400: '#46ECD8',
    500: '#22D2BE',
    600: '#239F91',
    700: '#1F7066',
    800: '#184843',
    900: '#112C29',
  },
}

$base: #003E37;
$base-ink: #FFFFFF;
$base-50: #F0FEFD;
$base-100: #D8FDF9;
$base-200: #B1FCF3;
$base-300: #77F8E9;
$base-400: #46ECD8;
$base-500: #22D2BE;
$base-600: #239F91;
$base-700: #1F7066;
$base-800: #184843;
$base-900: #112C29;
$base-hover: #00312B;
$base-subtle: #89EFE3;

{
    "color": {
        "base": {
            "value": "#003E37",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEFD",
                "type": "color"
            },
            "100": {
                "value": "#D8FDF9",
                "type": "color"
            },
            "200": {
                "value": "#B1FCF3",
                "type": "color"
            },
            "300": {
                "value": "#77F8E9",
                "type": "color"
            },
            "400": {
                "value": "#46ECD8",
                "type": "color"
            },
            "500": {
                "value": "#22D2BE",
                "type": "color"
            },
            "600": {
                "value": "#239F91",
                "type": "color"
            },
            "700": {
                "value": "#1F7066",
                "type": "color"
            },
            "800": {
                "value": "#184843",
                "type": "color"
            },
            "900": {
                "value": "#112C29",
                "type": "color"
            }
        }
    }
}