What color is #001F4E?

#001F4E is a very dark, vivid blue. In RGB it is rgb(0, 31, 78), and in HSL hsl(216, 100%, 15%).

Is #001F4E accessible as text?

On white, #001F4E has a contrast ratio of 16.08:1 (passes WCAG AA for body text); on black it is 1.31:1 (fails). For text placed on #001F4E, use white for the best readability.

What is the closest Tailwind color to #001F4E?

The nearest Tailwind CSS token is blue-950 (#162456).

What colors go well with #001F4E?

#001F4E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #4D2E00. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #001F4E below.

Is #001F4E good for buttons?

#001F4E works well for buttons and highlights, but use white text on #001F4E — black text only reaches 1.31:1, below the 4.5:1 needed for normal-size labels.

Is #001F4E the same as CSS midnightblue?

No — #001F4E is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#001F4E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #001F4E

Not just a swatch — here's how #001F4E works with other colors. Named schemes with #001F4E in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #001F4E Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Navy opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Luxury Packaging Feature · 5 colors

Feature #001F4E Anchor #141210 Accent #ADAE53 Secondary #232933 Surface #F0EEE3

Navy 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.

Moody Editorial Color · 5 colors

Color #001F4E Anchor #2A2A2E Secondary #6E6E74 Surface #E9E7DA Accent #040321

Navy adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Navy.

Vintage Leather Lead · 5 colors

Lead #001F4E Secondary #7F4537 Surface #E1DDC1 Accent #375246 Anchor #57223A

Navy plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #001F4E Secondary #3B4657 Support #9D8F89 Ink #16140F

Navy 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 Navy carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #001F4E 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 25/100

Cool

Reads cool and recessive — calming, technical, good for trust-led UI.

Softness 23/100

Low

Firm and assertive — carries weight and contrast.

Depth 74/100

High

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

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 33/100

Low

A faint retro warmth without tipping into sepia.

Luxury 78/100

High

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

Brand distinctiveness 36/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 24/100

Low

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

Surface fit 40/100

Low

Usable as a tinted surface in measured doses.

Print safety 81/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #001F4E

For UI

For branding

For interior

For fashion

People also use #001F4E with

Pine Green Navy Bistre Gainsboro Charcoal

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 16.1:1. Use

Subtle surface Use #B4CDF3 for cards and hover fills. Tint 80

Avoid beside #00054D — 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 #001F4E 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: #001F4E;
  --color-base-rgb: 0 31 78;
  --color-base-oklch: oklch(25.2% 0.094 258.3);
  --color-50: #F0F6FE;
  --color-100: #D8E7FD;
  --color-200: #B1CFFC;
  --color-300: #77ABF8;
  --color-400: #4688EC;
  --color-500: #2269D2;
  --color-600: #23549F;
  --color-700: #1F3F70;
  --color-800: #182C48;
  --color-900: #111C2C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  navy: {
    50: '#F0F6FE',
    100: '#D8E7FD',
    200: '#B1CFFC',
    300: '#77ABF8',
    400: '#4688EC',
    500: '#2269D2',
    600: '#23549F',
    700: '#1F3F70',
    800: '#182C48',
    900: '#111C2C',
  },
}

$base: #001F4E;
$base-ink: #FFFFFF;
$base-50: #F0F6FE;
$base-100: #D8E7FD;
$base-200: #B1CFFC;
$base-300: #77ABF8;
$base-400: #4688EC;
$base-500: #2269D2;
$base-600: #23549F;
$base-700: #1F3F70;
$base-800: #182C48;
$base-900: #111C2C;
$base-hover: #00183D;
$base-subtle: #8DB4EF;

{
    "color": {
        "base": {
            "value": "#001F4E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F6FE",
                "type": "color"
            },
            "100": {
                "value": "#D8E7FD",
                "type": "color"
            },
            "200": {
                "value": "#B1CFFC",
                "type": "color"
            },
            "300": {
                "value": "#77ABF8",
                "type": "color"
            },
            "400": {
                "value": "#4688EC",
                "type": "color"
            },
            "500": {
                "value": "#2269D2",
                "type": "color"
            },
            "600": {
                "value": "#23549F",
                "type": "color"
            },
            "700": {
                "value": "#1F3F70",
                "type": "color"
            },
            "800": {
                "value": "#182C48",
                "type": "color"
            },
            "900": {
                "value": "#111C2C",
                "type": "color"
            }
        }
    }
}