What color is #03210C?

#03210C is a very dark, vivid green. In RGB it is rgb(3, 33, 12), and in HSL hsl(138, 83%, 7%).

Is #03210C accessible as text?

On white, #03210C has a contrast ratio of 17.12:1 (passes WCAG AA for body text); on black it is 1.23:1 (fails). For text placed on #03210C, use white for the best readability.

What is the closest Tailwind color to #03210C?

The nearest Tailwind CSS token is olive-900 (#1D1D16).

What colors go well with #03210C?

#03210C pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #210318. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #03210C below.

Is #03210C good for buttons?

#03210C works well for buttons and highlights, but use white text on #03210C — black text only reaches 1.23:1, below the 4.5:1 needed for normal-size labels.

Is #03210C the same as CSS darkslategray?

No — #03210C 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.

#03210C Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #03210C

Not just a swatch — here's how #03210C works with other colors. Named schemes with #03210C in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #03210C Secondary #4B6C3C Accent #AD6C00 Surface #EEEAD6 Anchor #3C2F20

Graphite 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 #03210C Secondary #754E1B Surface #E5DBC0 Accent #3C5140 Anchor #5B2321

Graphite 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 #03210C Surface #EEEADC Highlight #F5F1E7 Secondary #B6B09F Ink #2B2723

Graphite 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 #03210C Anchor #141210 Accent #BFA74B Secondary #222C24 Surface #F1EDE3

Graphite 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 #03210C Secondary #364038 Support #989286 Ink #17140F

Graphite 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 Graphite carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #03210C 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 47/100

Neutral

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

Softness 23/100

Low

Firm and assertive — carries weight and contrast.

Depth 75/100

High

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

Naturalness 65/100

High

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

Vintage feel 31/100

Low

A faint retro warmth without tipping into sepia.

Luxury 76/100

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 14/100

Very low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 54/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 88/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #03210C

For UI

For branding

For interior

For fashion

People also use #03210C with

British Racing Green Graphite Jet Black 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 17.1:1. Use

Subtle surface Use #B3ECC4 for cards and hover fills. Tint 80

Avoid beside #032116 — 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 #03210C 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: #03210C;
  --color-base-rgb: 3 33 12;
  --color-base-oklch: oklch(21.9% 0.054 150.4);
  --color-50: #F0FEF5;
  --color-100: #D9FDE3;
  --color-200: #B4F8C9;
  --color-300: #82EDA2;
  --color-400: #54DE7E;
  --color-500: #31C35D;
  --color-600: #2D954C;
  --color-700: #26693A;
  --color-800: #1C4428;
  --color-900: #132A1A;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  graphite: {
    50: '#F0FEF5',
    100: '#D9FDE3',
    200: '#B4F8C9',
    300: '#82EDA2',
    400: '#54DE7E',
    500: '#31C35D',
    600: '#2D954C',
    700: '#26693A',
    800: '#1C4428',
    900: '#132A1A',
  },
}

$base: #03210C;
$base-ink: #FFFFFF;
$base-50: #F0FEF5;
$base-100: #D9FDE3;
$base-200: #B4F8C9;
$base-300: #82EDA2;
$base-400: #54DE7E;
$base-500: #31C35D;
$base-600: #2D954C;
$base-700: #26693A;
$base-800: #1C4428;
$base-900: #132A1A;
$base-hover: #021A0A;
$base-subtle: #8BE5A6;

{
    "color": {
        "base": {
            "value": "#03210C",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEF5",
                "type": "color"
            },
            "100": {
                "value": "#D9FDE3",
                "type": "color"
            },
            "200": {
                "value": "#B4F8C9",
                "type": "color"
            },
            "300": {
                "value": "#82EDA2",
                "type": "color"
            },
            "400": {
                "value": "#54DE7E",
                "type": "color"
            },
            "500": {
                "value": "#31C35D",
                "type": "color"
            },
            "600": {
                "value": "#2D954C",
                "type": "color"
            },
            "700": {
                "value": "#26693A",
                "type": "color"
            },
            "800": {
                "value": "#1C4428",
                "type": "color"
            },
            "900": {
                "value": "#132A1A",
                "type": "color"
            }
        }
    }
}

Palettes built on #03210C

Color Lab

Pairs with #03210C

UI roles & guardrails

In real applications

Scales

Every model

Export