What color is #040C65?

#040C65 is a dark, vivid blue. In RGB it is rgb(4, 12, 101), and in HSL hsl(235, 92%, 21%).

Is #040C65 accessible as text?

On white, #040C65 has a contrast ratio of 16.86:1 (passes WCAG AA for body text); on black it is 1.25:1 (fails). For text placed on #040C65, use white for the best readability.

What is the closest Tailwind color to #040C65?

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

What colors go well with #040C65?

#040C65 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #675F04. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #040C65 below.

Is #040C65 good for buttons?

#040C65 works well for buttons and highlights, but use white text on #040C65 — black text only reaches 1.25:1, below the 4.5:1 needed for normal-size labels.

Is #040C65 the same as CSS midnightblue?

No — #040C65 is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#040C65 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #040C65

Not just a swatch — here's how #040C65 works with other colors. Named schemes with #040C65 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #040C65 Anchor #141210 Accent #DD965A Secondary #242933 Surface #F4ECE3

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 #040C65 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #08002D

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 #040C65 Accent #A5C4C2 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 #040C65 Secondary #7F4536 Surface #EED7C2 Accent #365246 Anchor #58223A

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 #040C65 Secondary #374360 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 #040C65 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 14/100

Cool

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

Softness 20/100

Very low

Firm and assertive — carries weight and contrast.

Depth 78/100

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 24/100

Low

Clean and current — no dusty, aged cast.

Luxury 76/100

High

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

Brand distinctiveness 57/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 25/100

Low

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

Surface fit 24/100

Low

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

Print safety 73/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #040C65

For UI

For branding

For interior

For fashion

People also use #040C65 with

Lapis Lazuli Russian Violet Army Green Gainsboro Prussian Blue

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 #BCC0F1 for cards and hover fills. Tint 80

Avoid beside #1D0467 — 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 #040C65 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: #040C65;
  --color-base-rgb: 4 12 101;
  --color-base-oklch: oklch(24.5% 0.148 265.9);
  --color-50: #F0F1FE;
  --color-100: #D8DBFD;
  --color-200: #B1B7FC;
  --color-300: #7C86F3;
  --color-400: #4D5AE5;
  --color-500: #2937CB;
  --color-600: #28319A;
  --color-700: #22286D;
  --color-800: #1A1E47;
  --color-900: #12142B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  midnight-blue: {
    50: '#F0F1FE',
    100: '#D8DBFD',
    200: '#B1B7FC',
    300: '#7C86F3',
    400: '#4D5AE5',
    500: '#2937CB',
    600: '#28319A',
    700: '#22286D',
    800: '#1A1E47',
    900: '#12142B',
  },
}

$base: #040C65;
$base-ink: #FFFFFF;
$base-50: #F0F1FE;
$base-100: #D8DBFD;
$base-200: #B1B7FC;
$base-300: #7C86F3;
$base-400: #4D5AE5;
$base-500: #2937CB;
$base-600: #28319A;
$base-700: #22286D;
$base-800: #1A1E47;
$base-900: #12142B;
$base-hover: #030A52;
$base-subtle: #989FED;

{
    "color": {
        "base": {
            "value": "#040C65",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F1FE",
                "type": "color"
            },
            "100": {
                "value": "#D8DBFD",
                "type": "color"
            },
            "200": {
                "value": "#B1B7FC",
                "type": "color"
            },
            "300": {
                "value": "#7C86F3",
                "type": "color"
            },
            "400": {
                "value": "#4D5AE5",
                "type": "color"
            },
            "500": {
                "value": "#2937CB",
                "type": "color"
            },
            "600": {
                "value": "#28319A",
                "type": "color"
            },
            "700": {
                "value": "#22286D",
                "type": "color"
            },
            "800": {
                "value": "#1A1E47",
                "type": "color"
            },
            "900": {
                "value": "#12142B",
                "type": "color"
            }
        }
    }
}

Palettes built on #040C65

Color Lab

Pairs with #040C65

UI roles & guardrails

In real applications

Scales

Every model

Export