What color is #334D7A?

#334D7A is a dark blue. In RGB it is rgb(51, 77, 122), and in HSL hsl(218, 41%, 34%).

Is #334D7A accessible as text?

On white, #334D7A has a contrast ratio of 8.46:1 (passes WCAG AA for body text); on black it is 2.48:1 (fails). For text placed on #334D7A, use white for the best readability.

What is the closest Tailwind color to #334D7A?

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

What colors go well with #334D7A?

#334D7A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #7A6033. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #334D7A below.

Is #334D7A good for buttons?

#334D7A works well for buttons and highlights, but use white text on #334D7A — black text only reaches 2.48:1, below the 4.5:1 needed for normal-size labels.

Is #334D7A the same as CSS darkslateblue?

No — #334D7A is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#334D7A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #334D7A

Not just a swatch — here's how #334D7A works with other colors. Named schemes with #334D7A in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #334D7A Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

Classic Blue 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 #334D7A Secondary #AEB4B8 Surface #F1F2F0 Support #7D93A6 Anchor #2E3236

Classic Blue 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 #334D7A Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #56709A

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 #334D7A Secondary #7F4536 Surface #E1DDC1 Accent #375246 Anchor #57223A

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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #334D7A Secondary #6B7586 Support #9D8F88 Ink #18140F

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 #334D7A 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 38/100

Low

Middle-weight — neither delicate nor heavy.

Depth 57/100

Moderate

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

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 49/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 62/100

High

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

Brand distinctiveness 22/100

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 33/100

Low

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 #334D7A

For UI

For branding

For interior

For fashion

People also use #334D7A with

Dark Cyan Dark Slate Blue Raw Umber 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 8.5:1. Use

Subtle surface Use #D3DBE7 for cards and hover fills. Tint 80

Avoid beside #33367A — 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 #334D7A 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: #334D7A;
  --color-base-rgb: 51 77 122;
  --color-base-oklch: oklch(42.2% 0.082 260.8);
  --color-50: #F4F6FB;
  --color-100: #E2E8F3;
  --color-200: #C6D2E7;
  --color-300: #9DB1D2;
  --color-400: #7790BB;
  --color-500: #56719E;
  --color-600: #475A7A;
  --color-700: #374358;
  --color-800: #272E3A;
  --color-900: #191D24;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  classic-blue: {
    50: '#F4F6FB',
    100: '#E2E8F3',
    200: '#C6D2E7',
    300: '#9DB1D2',
    400: '#7790BB',
    500: '#56719E',
    600: '#475A7A',
    700: '#374358',
    800: '#272E3A',
    900: '#191D24',
  },
}

$base: #334D7A;
$base-ink: #FFFFFF;
$base-50: #F4F6FB;
$base-100: #E2E8F3;
$base-200: #C6D2E7;
$base-300: #9DB1D2;
$base-400: #7790BB;
$base-500: #56719E;
$base-600: #475A7A;
$base-700: #374358;
$base-800: #272E3A;
$base-900: #191D24;
$base-hover: #293E62;
$base-subtle: #BDC8DC;

{
    "color": {
        "base": {
            "value": "#334D7A",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F6FB",
                "type": "color"
            },
            "100": {
                "value": "#E2E8F3",
                "type": "color"
            },
            "200": {
                "value": "#C6D2E7",
                "type": "color"
            },
            "300": {
                "value": "#9DB1D2",
                "type": "color"
            },
            "400": {
                "value": "#7790BB",
                "type": "color"
            },
            "500": {
                "value": "#56719E",
                "type": "color"
            },
            "600": {
                "value": "#475A7A",
                "type": "color"
            },
            "700": {
                "value": "#374358",
                "type": "color"
            },
            "800": {
                "value": "#272E3A",
                "type": "color"
            },
            "900": {
                "value": "#191D24",
                "type": "color"
            }
        }
    }
}