What color is #034A7D?

#034A7D is a dark, vivid cyan-blue. In RGB it is rgb(3, 74, 125), and in HSL hsl(205, 95%, 25%).

Is #034A7D accessible as text?

On white, #034A7D has a contrast ratio of 9.21:1 (passes WCAG AA for body text); on black it is 2.28:1 (fails). For text placed on #034A7D, use white for the best readability.

What is the closest Tailwind color to #034A7D?

The nearest Tailwind CSS token is sky-900 (#024A70).

What colors go well with #034A7D?

#034A7D pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #7C3603. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #034A7D below.

Is #034A7D good for buttons?

#034A7D works well for buttons and highlights, but use white text on #034A7D — black text only reaches 2.28:1, below the 4.5:1 needed for normal-size labels.

Is #034A7D the same as CSS darkslateblue?

No — #034A7D is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#034A7D Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #034A7D

Not just a swatch — here's how #034A7D works with other colors. Named schemes with #034A7D in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #034A7D Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

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

Tech Product Signal · 5 colors

Signal #034A7D Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #386D9D

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

Vintage Leather Lead · 5 colors

Lead #034A7D Secondary #7F4438 Surface #E1DDC0 Accent #375245 Anchor #57233B

Classic 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.

Berry & Cream Lead · 5 colors

Lead #034A7D Surface #EDE9D6 Anchor #5A2245 Accent #E4C2CB Secondary #322B2F

Classic Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #034A7D Secondary #5E7183 Support #969386 Ink #16140F

Classic 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 Classic Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #034A7D 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 20/100

Cool

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

Softness 34/100

Low

Middle-weight — neither delicate nor heavy.

Depth 60/100

High

Mid depth — usable as an accent or a muted ground.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 43/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 66/100

High

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

Brand distinctiveness 29/100

Low

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

UI accent fit 71/100

High

Strong interactive accent — visible and can carry a legible label.

Surface fit 27/100

Low

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

Print safety 76/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #034A7D

For UI

For branding

For interior

For fashion

People also use #034A7D with

Persian Green Navy Blue Sepia 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 9.2:1. Use

Subtle surface Use #BFDDF3 for cards and hover fills. Tint 80

Avoid beside #03217C — 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 #034A7D at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

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: #034A7D;
  --color-base-rgb: 3 74 125;
  --color-base-oklch: oklch(39.9% 0.106 248.1);
  --color-50: #F0F9FE;
  --color-100: #D8EEFD;
  --color-200: #B1DCFC;
  --color-300: #7AC2F5;
  --color-400: #4AA6E8;
  --color-500: #2788CE;
  --color-600: #266B9C;
  --color-700: #214E6E;
  --color-800: #1A3447;
  --color-900: #12212B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  classic-blue: {
    50: '#F0F9FE',
    100: '#D8EEFD',
    200: '#B1DCFC',
    300: '#7AC2F5',
    400: '#4AA6E8',
    500: '#2788CE',
    600: '#266B9C',
    700: '#214E6E',
    800: '#1A3447',
    900: '#12212B',
  },
}

$base: #034A7D;
$base-ink: #FFFFFF;
$base-50: #F0F9FE;
$base-100: #D8EEFD;
$base-200: #B1DCFC;
$base-300: #7AC2F5;
$base-400: #4AA6E8;
$base-500: #2788CE;
$base-600: #266B9C;
$base-700: #214E6E;
$base-800: #1A3447;
$base-900: #12212B;
$base-hover: #033B63;
$base-subtle: #9CCDEF;

{
    "color": {
        "base": {
            "value": "#034A7D",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F9FE",
                "type": "color"
            },
            "100": {
                "value": "#D8EEFD",
                "type": "color"
            },
            "200": {
                "value": "#B1DCFC",
                "type": "color"
            },
            "300": {
                "value": "#7AC2F5",
                "type": "color"
            },
            "400": {
                "value": "#4AA6E8",
                "type": "color"
            },
            "500": {
                "value": "#2788CE",
                "type": "color"
            },
            "600": {
                "value": "#266B9C",
                "type": "color"
            },
            "700": {
                "value": "#214E6E",
                "type": "color"
            },
            "800": {
                "value": "#1A3447",
                "type": "color"
            },
            "900": {
                "value": "#12212B",
                "type": "color"
            }
        }
    }
}

Palettes built on #034A7D

Color Lab

Pairs with #034A7D

UI roles & guardrails

In real applications

Scales

Every model

Export