What color is #212901?

#212901 is a very dark, vivid lime green. In RGB it is rgb(33, 41, 1), and in HSL hsl(72, 95%, 8%).

Is #212901 accessible as text?

On white, #212901 has a contrast ratio of 15.19:1 (passes WCAG AA for body text); on black it is 1.38:1 (fails). For text placed on #212901, use white for the best readability.

What is the closest Tailwind color to #212901?

The nearest Tailwind CSS token is lime-950 (#192E03).

What colors go well with #212901?

#212901 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #090128. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #212901 below.

Is #212901 good for buttons?

#212901 works well for buttons and highlights, but use white text on #212901 — black text only reaches 1.38:1, below the 4.5:1 needed for normal-size labels.

Is #212901 the same as CSS darkslategray?

No — #212901 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.

#212901 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #212901

Not just a swatch — here's how #212901 works with other colors. Named schemes with #212901 in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

Dominant #212901 Secondary #B06A03 Accent #6B7B4A Surface #F2ECDD Anchor #3A2B1F

This palette keeps Sacramento Green as the dominant warm neutral, balanced by muted terracotta and olive earth tones and grounded by a deep espresso anchor.

Vintage Leather Lead · 5 colors

Lead #212901 Secondary #774D1E Surface #E7DBC0 Accent #3E513E Anchor #5B2324

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.

Botanical Studio Lead · 5 colors

Lead #212901 Secondary #506B38 Accent #B06A03 Surface #EFE9D6 Anchor #3D2F21

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

Desert Clay Center · 5 colors

Center #212901 Surface #DED0A8 Secondary #AC7D4F Accent #8E9A72 Anchor #3D2D1F

Sacramento Green holds the warm center of this desert palette with sand and clay beside it, a muted-sage accent and a dark-brown anchor.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #212901 Secondary #474B3E Support #999186 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.

Build a working theme in the generator →

Color Lab

How #212901 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 56/100

Neutral

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

Softness 26/100

Low

Firm and assertive — carries weight and contrast.

Depth 71/100

High

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

Naturalness 74/100

High

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 73/100

High

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

Brand distinctiveness 24/100

Low

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

UI accent fit 23/100

Low

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

Surface fit 49/100

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 #212901

For UI

For branding

For interior

For fashion

People also use #212901 with

Espresso Sacramento Green Jet Black Platinum Army 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 15.2:1. Use

Subtle surface Use #E3F0B0 for cards and hover fills. Tint 80

Avoid beside #132801 — 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 #212901 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: #212901;
  --color-base-rgb: 33 41 1;
  --color-base-oklch: oklch(26.4% 0.062 120.5);
  --color-50: #FCFEF0;
  --color-100: #F6FDD8;
  --color-200: #EDFCB1;
  --color-300: #DCF57A;
  --color-400: #C8E84A;
  --color-500: #ADCE27;
  --color-600: #849C26;
  --color-700: #5E6E21;
  --color-800: #3E471A;
  --color-900: #262B12;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  sacramento-green: {
    50: '#FCFEF0',
    100: '#F6FDD8',
    200: '#EDFCB1',
    300: '#DCF57A',
    400: '#C8E84A',
    500: '#ADCE27',
    600: '#849C26',
    700: '#5E6E21',
    800: '#3E471A',
    900: '#262B12',
  },
}

$base: #212901;
$base-ink: #FFFFFF;
$base-50: #FCFEF0;
$base-100: #F6FDD8;
$base-200: #EDFCB1;
$base-300: #DCF57A;
$base-400: #C8E84A;
$base-500: #ADCE27;
$base-600: #849C26;
$base-700: #5E6E21;
$base-800: #3E471A;
$base-900: #262B12;
$base-hover: #1A2001;
$base-subtle: #D7EB86;

{
    "color": {
        "base": {
            "value": "#212901",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FCFEF0",
                "type": "color"
            },
            "100": {
                "value": "#F6FDD8",
                "type": "color"
            },
            "200": {
                "value": "#EDFCB1",
                "type": "color"
            },
            "300": {
                "value": "#DCF57A",
                "type": "color"
            },
            "400": {
                "value": "#C8E84A",
                "type": "color"
            },
            "500": {
                "value": "#ADCE27",
                "type": "color"
            },
            "600": {
                "value": "#849C26",
                "type": "color"
            },
            "700": {
                "value": "#5E6E21",
                "type": "color"
            },
            "800": {
                "value": "#3E471A",
                "type": "color"
            },
            "900": {
                "value": "#262B12",
                "type": "color"
            }
        }
    }
}

Palettes built on #212901

Color Lab

Pairs with #212901

UI roles & guardrails

In real applications

Scales

Every model

Export