What color is #042147?

#042147 is a very dark, vivid blue. In RGB it is rgb(4, 33, 71), and in HSL hsl(214, 89%, 15%).

Is #042147 accessible as text?

On white, #042147 has a contrast ratio of 15.99:1 (passes WCAG AA for body text); on black it is 1.31:1 (fails). For text placed on #042147, use white for the best readability.

What is the closest Tailwind color to #042147?

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

What colors go well with #042147?

#042147 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #482B04. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #042147 below.

Is #042147 good for buttons?

#042147 works well for buttons and highlights, but use white text on #042147 — black text only reaches 1.31:1, below the 4.5:1 needed for normal-size labels.

Is #042147 the same as CSS midnightblue?

No — #042147 is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#042147 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #042147

Not just a swatch — here's how #042147 works with other colors. Named schemes with #042147 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #042147 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.

Nordic Calm Accent · 5 colors

Accent #042147 Secondary #AEB4B8 Surface #F1F2F0 Support #7D93A6 Anchor #2E3236

Navy keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Tech Product Signal · 5 colors

Signal #042147 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #264165

Navy is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Navy.

Vintage Leather Lead · 5 colors

Lead #042147 Secondary #7F4537 Surface #E1DDC1 Accent #375246 Anchor #57233B

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 #042147 Secondary #3C4655 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 #042147 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 29/100

Cool

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

Softness 24/100

Low

Firm and assertive — carries weight and contrast.

Depth 73/100

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 76/100

High

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

Brand distinctiveness 31/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 23/100

Low

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

Surface fit 45/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 84/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #042147

For UI

For branding

For interior

For fashion

People also use #042147 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 16.0:1. Use

Subtle surface Use #B8D0EF for cards and hover fills. Tint 80

Avoid beside #040B48 — 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 #042147 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: #042147;
  --color-base-rgb: 4 33 71;
  --color-base-oklch: oklch(25.2% 0.079 256.6);
  --color-50: #F0F6FE;
  --color-100: #D8E8FD;
  --color-200: #B2D1FA;
  --color-300: #7EB0F1;
  --color-400: #4F8FE3;
  --color-500: #2C70C9;
  --color-600: #2A5A98;
  --color-700: #23436B;
  --color-800: #1B2E46;
  --color-900: #131D2B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  navy: {
    50: '#F0F6FE',
    100: '#D8E8FD',
    200: '#B2D1FA',
    300: '#7EB0F1',
    400: '#4F8FE3',
    500: '#2C70C9',
    600: '#2A5A98',
    700: '#23436B',
    800: '#1B2E46',
    900: '#131D2B',
  },
}

$base: #042147;
$base-ink: #FFFFFF;
$base-50: #F0F6FE;
$base-100: #D8E8FD;
$base-200: #B2D1FA;
$base-300: #7EB0F1;
$base-400: #4F8FE3;
$base-500: #2C70C9;
$base-600: #2A5A98;
$base-700: #23436B;
$base-800: #1B2E46;
$base-900: #131D2B;
$base-hover: #031B3A;
$base-subtle: #92B8EA;

{
    "color": {
        "base": {
            "value": "#042147",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F6FE",
                "type": "color"
            },
            "100": {
                "value": "#D8E8FD",
                "type": "color"
            },
            "200": {
                "value": "#B2D1FA",
                "type": "color"
            },
            "300": {
                "value": "#7EB0F1",
                "type": "color"
            },
            "400": {
                "value": "#4F8FE3",
                "type": "color"
            },
            "500": {
                "value": "#2C70C9",
                "type": "color"
            },
            "600": {
                "value": "#2A5A98",
                "type": "color"
            },
            "700": {
                "value": "#23436B",
                "type": "color"
            },
            "800": {
                "value": "#1B2E46",
                "type": "color"
            },
            "900": {
                "value": "#131D2B",
                "type": "color"
            }
        }
    }
}