What color is #021B43?

#021B43 is a very dark, vivid blue. In RGB it is rgb(2, 27, 67), and in HSL hsl(217, 94%, 14%).

Is #021B43 accessible as text?

On white, #021B43 has a contrast ratio of 16.93:1 (passes WCAG AA for body text); on black it is 1.24:1 (fails). For text placed on #021B43, use white for the best readability.

What is the closest Tailwind color to #021B43?

The nearest Tailwind CSS token is indigo-950 (#1E1A4D).

What colors go well with #021B43?

#021B43 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #452C02. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #021B43 below.

Is #021B43 good for buttons?

#021B43 works well for buttons and highlights, but use white text on #021B43 — black text only reaches 1.24:1, below the 4.5:1 needed for normal-size labels.

Is #021B43 the same as CSS midnightblue?

No — #021B43 is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#021B43 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #021B43

Not just a swatch — here's how #021B43 works with other colors. Named schemes with #021B43 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #021B43 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 #021B43 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 #021B43 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #223B61

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 #021B43 Secondary #7F4536 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 #021B43 Secondary #374150 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 #021B43 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 22/100

Low

Firm and assertive — carries weight and contrast.

Depth 75/100

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 32/100

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 32/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 19/100

Very 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 #021B43

For UI

For branding

For interior

For fashion

People also use #021B43 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 16.9:1. Use

Subtle surface Use #B5CCF1 for cards and hover fills. Tint 80

Avoid beside #020545 — 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 #021B43 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: #021B43;
  --color-base-rgb: 2 27 67;
  --color-base-oklch: oklch(23.2% 0.082 258.7);
  --color-50: #F0F6FE;
  --color-100: #D8E6FD;
  --color-200: #B1CDFC;
  --color-300: #7BA9F4;
  --color-400: #4B87E7;
  --color-500: #2867CD;
  --color-600: #26539B;
  --color-700: #213F6D;
  --color-800: #1A2B47;
  --color-900: #121C2B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  navy: {
    50: '#F0F6FE',
    100: '#D8E6FD',
    200: '#B1CDFC',
    300: '#7BA9F4',
    400: '#4B87E7',
    500: '#2867CD',
    600: '#26539B',
    700: '#213F6D',
    800: '#1A2B47',
    900: '#121C2B',
  },
}

$base: #021B43;
$base-ink: #FFFFFF;
$base-50: #F0F6FE;
$base-100: #D8E6FD;
$base-200: #B1CDFC;
$base-300: #7BA9F4;
$base-400: #4B87E7;
$base-500: #2867CD;
$base-600: #26539B;
$base-700: #213F6D;
$base-800: #1A2B47;
$base-900: #121C2B;
$base-hover: #021637;
$base-subtle: #8EB2EC;

{
    "color": {
        "base": {
            "value": "#021B43",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F6FE",
                "type": "color"
            },
            "100": {
                "value": "#D8E6FD",
                "type": "color"
            },
            "200": {
                "value": "#B1CDFC",
                "type": "color"
            },
            "300": {
                "value": "#7BA9F4",
                "type": "color"
            },
            "400": {
                "value": "#4B87E7",
                "type": "color"
            },
            "500": {
                "value": "#2867CD",
                "type": "color"
            },
            "600": {
                "value": "#26539B",
                "type": "color"
            },
            "700": {
                "value": "#213F6D",
                "type": "color"
            },
            "800": {
                "value": "#1A2B47",
                "type": "color"
            },
            "900": {
                "value": "#121C2B",
                "type": "color"
            }
        }
    }
}