What color is #021D66?

#021D66 is a dark, vivid blue. In RGB it is rgb(2, 29, 102), and in HSL hsl(224, 96%, 20%).

Is #021D66 accessible as text?

On white, #021D66 has a contrast ratio of 15.33:1 (passes WCAG AA for body text); on black it is 1.37:1 (fails). For text placed on #021D66, use white for the best readability.

What is the closest Tailwind color to #021D66?

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

What colors go well with #021D66?

#021D66 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #644A02. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #021D66 below.

Is #021D66 good for buttons?

#021D66 works well for buttons and highlights, but use white text on #021D66 — black text only reaches 1.37:1, below the 4.5:1 needed for normal-size labels.

Is #021D66 the same as CSS midnightblue?

No — #021D66 is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#021D66 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #021D66

Not just a swatch — here's how #021D66 works with other colors. Named schemes with #021D66 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #021D66 Anchor #141210 Accent #ACAE53 Secondary #242933 Surface #F0EEE3

Midnight Blue 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 #021D66 Anchor #2A2A2E Secondary #6E6E74 Surface #E9E7DA Accent #0A0031

Midnight Blue 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 Midnight Blue.

Coastal Morning Lead · 5 colors

Lead #021D66 Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

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

Vintage Leather Lead · 5 colors

Lead #021D66 Secondary #7F4536 Surface #EED7C2 Accent #375246 Anchor #57223A

Midnight Blue 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 #F8F4EF Accent #021D66 Secondary #3E4B65 Support #9D8F88 Ink #18140F

Midnight Blue 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 Midnight Blue carrying the quiet middle.

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Color Lab

How #021D66 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 17/100

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 28/100

Low

A faint retro warmth without tipping into sepia.

Luxury 75/100

High

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

Brand distinctiveness 51/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 32/100

Low

Workable accent with care around contrast.

Surface fit 27/100

Low

Too saturated or mid-toned for big areas — keep it to accents.

Print safety 75/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #021D66

For UI

For branding

For interior

For fashion

People also use #021D66 with

Teal Blue Midnight Blue Army Green 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 15.3:1. Use

Subtle surface Use #BAC9F2 for cards and hover fills. Tint 80

Avoid beside #090264 — 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 #021D66 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: #021D66;
  --color-base-rgb: 2 29 102;
  --color-base-oklch: oklch(27.3% 0.132 263.3);
  --color-50: #F0F4FE;
  --color-100: #D8E2FD;
  --color-200: #B1C5FC;
  --color-300: #7A9BF6;
  --color-400: #4A74E8;
  --color-500: #2653CF;
  --color-600: #25459D;
  --color-700: #21356E;
  --color-800: #192648;
  --color-900: #12192C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  midnight-blue: {
    50: '#F0F4FE',
    100: '#D8E2FD',
    200: '#B1C5FC',
    300: '#7A9BF6',
    400: '#4A74E8',
    500: '#2653CF',
    600: '#25459D',
    700: '#21356E',
    800: '#192648',
    900: '#12192C',
  },
}

$base: #021D66;
$base-ink: #FFFFFF;
$base-50: #F0F4FE;
$base-100: #D8E2FD;
$base-200: #B1C5FC;
$base-300: #7A9BF6;
$base-400: #4A74E8;
$base-500: #2653CF;
$base-600: #25459D;
$base-700: #21356E;
$base-800: #192648;
$base-900: #12192C;
$base-hover: #021750;
$base-subtle: #95ADEE;

{
    "color": {
        "base": {
            "value": "#021D66",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F4FE",
                "type": "color"
            },
            "100": {
                "value": "#D8E2FD",
                "type": "color"
            },
            "200": {
                "value": "#B1C5FC",
                "type": "color"
            },
            "300": {
                "value": "#7A9BF6",
                "type": "color"
            },
            "400": {
                "value": "#4A74E8",
                "type": "color"
            },
            "500": {
                "value": "#2653CF",
                "type": "color"
            },
            "600": {
                "value": "#25459D",
                "type": "color"
            },
            "700": {
                "value": "#21356E",
                "type": "color"
            },
            "800": {
                "value": "#192648",
                "type": "color"
            },
            "900": {
                "value": "#12192C",
                "type": "color"
            }
        }
    }
}

Palettes built on #021D66

Color Lab

Pairs with #021D66

UI roles & guardrails

In real applications

Scales

Every model

Export