What color is #233F01?

#233F01 is a very dark, vivid green. In RGB it is rgb(35, 63, 1), and in HSL hsl(87, 97%, 13%).

Is #233F01 accessible as text?

On white, #233F01 has a contrast ratio of 11.78:1 (passes WCAG AA for body text); on black it is 1.78:1 (fails). For text placed on #233F01, use white for the best readability.

What is the closest Tailwind color to #233F01?

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

What colors go well with #233F01?

#233F01 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #1E0141. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #233F01 below.

Is #233F01 good for buttons?

#233F01 works well for buttons and highlights, but use white text on #233F01 — black text only reaches 1.78:1, below the 4.5:1 needed for normal-size labels.

Is #233F01 the same as CSS darkslategray?

No — #233F01 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.

#233F01 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #233F01

Not just a swatch — here's how #233F01 works with other colors. Named schemes with #233F01 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #233F01 Secondary #4E6B3A Accent #AF6B00 Surface #EFE9D6 Anchor #3D2F21

British Racing 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 #233F01 Secondary #764D1C Surface #E6DBC0 Accent #3D513F Anchor #5B2323

British Racing 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 #233F01 Surface #EEE9DC Highlight #F5F1E7 Secondary #B7B09F Ink #2B2723

British Racing 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 #233F01 Anchor #141210 Accent #C2A54B Secondary #252B21 Surface #F2EDE3

British Racing 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 #233F01 Secondary #55604D Support #999286 Ink #17140F

British Racing 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 British Racing Green carrying the quiet middle.

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Color Lab

How #233F01 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 54/100

Neutral

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

Softness 30/100

Low

Firm and assertive — carries weight and contrast.

Depth 66/100

High

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

Naturalness 100/100

Very high

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

Vintage feel 55/100

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 35/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 46/100

Moderate

Workable accent with care around contrast.

Surface fit 36/100

Low

Usable as a tinted surface in measured doses.

Print safety 80/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #233F01

For UI

For branding

For interior

For fashion

People also use #233F01 with

Dark Olive Green British Racing Green Deep Purple 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 11.8:1. Use

Subtle surface Use #D6F2B4 for cards and hover fills. Tint 80

Avoid beside #0F4101 — 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 #233F01 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: #233F01;
  --color-base-rgb: 35 63 1;
  --color-base-oklch: oklch(33.2% 0.091 132.1);
  --color-50: #F8FEF0;
  --color-100: #ECFDD8;
  --color-200: #DAFCB1;
  --color-300: #BEF679;
  --color-400: #A1E949;
  --color-500: #83D025;
  --color-600: #679D25;
  --color-700: #4B6F20;
  --color-800: #334819;
  --color-900: #202C11;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  british-racing-green: {
    50: '#F8FEF0',
    100: '#ECFDD8',
    200: '#DAFCB1',
    300: '#BEF679',
    400: '#A1E949',
    500: '#83D025',
    600: '#679D25',
    700: '#4B6F20',
    800: '#334819',
    900: '#202C11',
  },
}

$base: #233F01;
$base-ink: #FFFFFF;
$base-50: #F8FEF0;
$base-100: #ECFDD8;
$base-200: #DAFCB1;
$base-300: #BEF679;
$base-400: #A1E949;
$base-500: #83D025;
$base-600: #679D25;
$base-700: #4B6F20;
$base-800: #334819;
$base-900: #202C11;
$base-hover: #1D3401;
$base-subtle: #C1EE8B;

{
    "color": {
        "base": {
            "value": "#233F01",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F8FEF0",
                "type": "color"
            },
            "100": {
                "value": "#ECFDD8",
                "type": "color"
            },
            "200": {
                "value": "#DAFCB1",
                "type": "color"
            },
            "300": {
                "value": "#BEF679",
                "type": "color"
            },
            "400": {
                "value": "#A1E949",
                "type": "color"
            },
            "500": {
                "value": "#83D025",
                "type": "color"
            },
            "600": {
                "value": "#679D25",
                "type": "color"
            },
            "700": {
                "value": "#4B6F20",
                "type": "color"
            },
            "800": {
                "value": "#334819",
                "type": "color"
            },
            "900": {
                "value": "#202C11",
                "type": "color"
            }
        }
    }
}