What color is #151B01?

#151B01 is a very dark, vivid lime green. In RGB it is rgb(21, 27, 1), and in HSL hsl(74, 93%, 5%).

Is #151B01 accessible as text?

On white, #151B01 has a contrast ratio of 17.66:1 (passes WCAG AA for body text); on black it is 1.19:1 (fails). For text placed on #151B01, use white for the best readability.

What is the closest Tailwind color to #151B01?

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

What colors go well with #151B01?

#151B01 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #060119. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #151B01 below.

Is #151B01 good for buttons?

#151B01 works well for buttons and highlights, but use white text on #151B01 — black text only reaches 1.19:1, below the 4.5:1 needed for normal-size labels.

Is #151B01 the same as CSS darkslategray?

No — #151B01 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.

#151B01 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #151B01

Not just a swatch — here's how #151B01 works with other colors. Named schemes with #151B01 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #151B01 Secondary #506B38 Accent #B06A03 Surface #EFE9D6 Anchor #3D2F21

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 #151B01 Secondary #774D1E Surface #E7DBC0 Accent #3E513E Anchor #5B2324

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 #151B01 Surface #EEE9DC Highlight #F6F1E7 Secondary #B7B09F 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 #151B01 Anchor #141210 Accent #C4A54B Secondary #272A1F Surface #F2EDE3

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 #151B01 Secondary #393C32 Support #999186 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 #151B01 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 55/100

Neutral

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

Softness 22/100

Low

Firm and assertive — carries weight and contrast.

Depth 76/100

High

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

Naturalness 59/100

Moderate

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

Vintage feel 33/100

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 18/100

Very low

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

UI accent fit 12/100

Very low

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

Surface fit 57/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 90/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #151B01

For UI

For branding

For interior

For fashion

People also use #151B01 with

Bistre Graphite 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 17.7:1. Use

Subtle surface Use #E0EFAE for cards and hover fills. Tint 80

Avoid beside #0B1901 — 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 #151B01 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: #151B01;
  --color-base-rgb: 21 27 1;
  --color-base-oklch: oklch(20.9% 0.048 120.7);
  --color-50: #FBFEF0;
  --color-100: #F5FDD8;
  --color-200: #EAFCB1;
  --color-300: #D8F47C;
  --color-400: #C2E64C;
  --color-500: #A6CC29;
  --color-600: #809B27;
  --color-700: #5B6D22;
  --color-800: #3C471A;
  --color-900: #252B12;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  graphite: {
    50: '#FBFEF0',
    100: '#F5FDD8',
    200: '#EAFCB1',
    300: '#D8F47C',
    400: '#C2E64C',
    500: '#A6CC29',
    600: '#809B27',
    700: '#5B6D22',
    800: '#3C471A',
    900: '#252B12',
  },
}

$base: #151B01;
$base-ink: #FFFFFF;
$base-50: #FBFEF0;
$base-100: #F5FDD8;
$base-200: #EAFCB1;
$base-300: #D8F47C;
$base-400: #C2E64C;
$base-500: #A6CC29;
$base-600: #809B27;
$base-700: #5B6D22;
$base-800: #3C471A;
$base-900: #252B12;
$base-hover: #0F1401;
$base-subtle: #D2EA83;

{
    "color": {
        "base": {
            "value": "#151B01",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FBFEF0",
                "type": "color"
            },
            "100": {
                "value": "#F5FDD8",
                "type": "color"
            },
            "200": {
                "value": "#EAFCB1",
                "type": "color"
            },
            "300": {
                "value": "#D8F47C",
                "type": "color"
            },
            "400": {
                "value": "#C2E64C",
                "type": "color"
            },
            "500": {
                "value": "#A6CC29",
                "type": "color"
            },
            "600": {
                "value": "#809B27",
                "type": "color"
            },
            "700": {
                "value": "#5B6D22",
                "type": "color"
            },
            "800": {
                "value": "#3C471A",
                "type": "color"
            },
            "900": {
                "value": "#252B12",
                "type": "color"
            }
        }
    }
}