What color is #021F3A?

#021F3A is a very dark, vivid blue. In RGB it is rgb(2, 31, 58), and in HSL hsl(209, 93%, 12%).

Is #021F3A accessible as text?

On white, #021F3A has a contrast ratio of 16.67:1 (passes WCAG AA for body text); on black it is 1.26:1 (fails). For text placed on #021F3A, use white for the best readability.

What is the closest Tailwind color to #021F3A?

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

What colors go well with #021F3A?

#021F3A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #3B1E02. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #021F3A below.

Is #021F3A good for buttons?

#021F3A works well for buttons and highlights, but use white text on #021F3A — black text only reaches 1.26:1, below the 4.5:1 needed for normal-size labels.

Is #021F3A the same as CSS midnightblue?

No — #021F3A is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#021F3A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #021F3A

Not just a swatch — here's how #021F3A works with other colors. Named schemes with #021F3A in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #021F3A 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 #021F3A Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 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 #021F3A Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #243E58

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 #021F3A Secondary #7F4538 Surface #E1DDC0 Accent #375245 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 #021F3A Secondary #38424C Support #959386 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 #021F3A 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 33/100

Cool

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

Softness 24/100

Low

Firm and assertive — carries weight and contrast.

Depth 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 28/100

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 24/100

Low

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

UI accent fit 17/100

Very low

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

Surface fit 51/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 86/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #021F3A

For UI

For branding

For interior

For fashion

People also use #021F3A with

Hunter 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 16.7:1. Use

Subtle surface Use #B4D3F0 for cards and hover fills. Tint 80

Avoid beside #020D3B — 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 #021F3A at work across the surfaces designers actually ship.

Website / UI

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Build faster.

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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: #021F3A;
  --color-base-rgb: 2 31 58;
  --color-base-oklch: oklch(23.5% 0.062 249.9);
  --color-50: #F0F8FE;
  --color-100: #D8EBFD;
  --color-200: #B1D7FC;
  --color-300: #7CBAF4;
  --color-400: #4C9CE6;
  --color-500: #297DCC;
  --color-600: #27639B;
  --color-700: #22496D;
  --color-800: #1A3147;
  --color-900: #121F2B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  navy: {
    50: '#F0F8FE',
    100: '#D8EBFD',
    200: '#B1D7FC',
    300: '#7CBAF4',
    400: '#4C9CE6',
    500: '#297DCC',
    600: '#27639B',
    700: '#22496D',
    800: '#1A3147',
    900: '#121F2B',
  },
}

$base: #021F3A;
$base-ink: #FFFFFF;
$base-50: #F0F8FE;
$base-100: #D8EBFD;
$base-200: #B1D7FC;
$base-300: #7CBAF4;
$base-400: #4C9CE6;
$base-500: #297DCC;
$base-600: #27639B;
$base-700: #22496D;
$base-800: #1A3147;
$base-900: #121F2B;
$base-hover: #02192F;
$base-subtle: #8CBDEB;

{
    "color": {
        "base": {
            "value": "#021F3A",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F8FE",
                "type": "color"
            },
            "100": {
                "value": "#D8EBFD",
                "type": "color"
            },
            "200": {
                "value": "#B1D7FC",
                "type": "color"
            },
            "300": {
                "value": "#7CBAF4",
                "type": "color"
            },
            "400": {
                "value": "#4C9CE6",
                "type": "color"
            },
            "500": {
                "value": "#297DCC",
                "type": "color"
            },
            "600": {
                "value": "#27639B",
                "type": "color"
            },
            "700": {
                "value": "#22496D",
                "type": "color"
            },
            "800": {
                "value": "#1A3147",
                "type": "color"
            },
            "900": {
                "value": "#121F2B",
                "type": "color"
            }
        }
    }
}