What color is #03391D?

#03391D is a very dark, vivid teal-green. In RGB it is rgb(3, 57, 29), and in HSL hsl(149, 90%, 12%).

Is #03391D accessible as text?

On white, #03391D has a contrast ratio of 13.07:1 (passes WCAG AA for body text); on black it is 1.61:1 (fails). For text placed on #03391D, use white for the best readability.

What is the closest Tailwind color to #03391D?

The nearest Tailwind CSS token is green-950 (#032E15).

What colors go well with #03391D?

#03391D pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #3A0320. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #03391D below.

Is #03391D good for buttons?

#03391D works well for buttons and highlights, but use white text on #03391D — black text only reaches 1.61:1, below the 4.5:1 needed for normal-size labels.

Is #03391D the same as CSS darkslategray?

No — #03391D 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.

#03391D Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #03391D

Not just a swatch — here's how #03391D works with other colors. Named schemes with #03391D in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #03391D Secondary #4B6C3D Accent #AC6C00 Surface #EEEAD6 Anchor #3C2F20

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

Vintage Leather Lead · 5 colors

Lead #03391D Secondary #744E1B Surface #E5DBC0 Accent #3C5140 Anchor #5B2321

Sacramento 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.

Japanese Sand Base · 5 colors

Base #03391D Surface #EEEADC Highlight #F5F1E7 Secondary #B6B09F Ink #2A2723

Sacramento Green sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Luxury Packaging Feature · 5 colors

Feature #03391D Anchor #141210 Accent #BFA74B Secondary #212C24 Surface #F1EDE3

Sacramento 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 #03391D Secondary #49584D Support #989286 Ink #17140F

Sacramento 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 Sacramento Green carrying the quiet middle.

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Color Lab

How #03391D 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 45/100

Neutral

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

Softness 29/100

Low

Firm and assertive — carries weight and contrast.

Depth 68/100

High

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

Naturalness 78/100

High

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

Vintage feel 43/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 71/100

High

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

Brand distinctiveness 28/100

Low

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

UI accent fit 34/100

Low

Workable accent with care around contrast.

Surface fit 43/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 84/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #03391D

For UI

For branding

For interior

For fashion

People also use #03391D with

Dark Green Bottle Green Deep Purple 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 13.1:1. Use

Subtle surface Use #B5EFD1 for cards and hover fills. Tint 80

Avoid beside #033A30 — 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 #03391D 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: #03391D;
  --color-base-rgb: 3 57 29;
  --color-base-oklch: oklch(30.4% 0.073 154.4);
  --color-50: #F0FEF7;
  --color-100: #D8FDEA;
  --color-200: #B2FBD5;
  --color-300: #7EF2B6;
  --color-400: #4FE397;
  --color-500: #2BCA78;
  --color-600: #29995F;
  --color-700: #236C46;
  --color-800: #1B4630;
  --color-900: #122B1E;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  sacramento-green: {
    50: '#F0FEF7',
    100: '#D8FDEA',
    200: '#B2FBD5',
    300: '#7EF2B6',
    400: '#4FE397',
    500: '#2BCA78',
    600: '#29995F',
    700: '#236C46',
    800: '#1B4630',
    900: '#122B1E',
  },
}

$base: #03391D;
$base-ink: #FFFFFF;
$base-50: #F0FEF7;
$base-100: #D8FDEA;
$base-200: #B2FBD5;
$base-300: #7EF2B6;
$base-400: #4FE397;
$base-500: #2BCA78;
$base-600: #29995F;
$base-700: #236C46;
$base-800: #1B4630;
$base-900: #122B1E;
$base-hover: #022F18;
$base-subtle: #8EEABA;

{
    "color": {
        "base": {
            "value": "#03391D",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEF7",
                "type": "color"
            },
            "100": {
                "value": "#D8FDEA",
                "type": "color"
            },
            "200": {
                "value": "#B2FBD5",
                "type": "color"
            },
            "300": {
                "value": "#7EF2B6",
                "type": "color"
            },
            "400": {
                "value": "#4FE397",
                "type": "color"
            },
            "500": {
                "value": "#2BCA78",
                "type": "color"
            },
            "600": {
                "value": "#29995F",
                "type": "color"
            },
            "700": {
                "value": "#236C46",
                "type": "color"
            },
            "800": {
                "value": "#1B4630",
                "type": "color"
            },
            "900": {
                "value": "#122B1E",
                "type": "color"
            }
        }
    }
}

Palettes built on #03391D

Color Lab

Pairs with #03391D

UI roles & guardrails

In real applications

Scales

Every model

Export