What color is #334271?

#334271 is a dark blue. In RGB it is rgb(51, 66, 113), and in HSL hsl(225, 38%, 32%).

Is #334271 accessible as text?

On white, #334271 has a contrast ratio of 9.73:1 (passes WCAG AA for body text); on black it is 2.16:1 (fails). For text placed on #334271, use white for the best readability.

What is the closest Tailwind color to #334271?

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

What colors go well with #334271?

#334271 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #716133. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #334271 below.

Is #334271 good for buttons?

#334271 works well for buttons and highlights, but use white text on #334271 — black text only reaches 2.16:1, below the 4.5:1 needed for normal-size labels.

Is #334271 the same as CSS darkslateblue?

No — #334271 is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#334271 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #334271

Not just a swatch — here's how #334271 works with other colors. Named schemes with #334271 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #334271 Accent #A5C4C2 Surface #EAD5C0 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 #334271 Secondary #AEB4B8 Surface #F1F2F0 Support #7D92A7 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 #334271 Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #556491

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 #334271 Secondary #7F4535 Surface #EED7C2 Accent #365246 Anchor #582239

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 #334271 Secondary #656B7D 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 #334271 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 31/100

Cool

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

Softness 36/100

Low

Middle-weight — neither delicate nor heavy.

Depth 60/100

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 47/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 65/100

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 62/100

High

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

Surface fit 35/100

Low

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 #334271

For UI

For branding

For interior

For fashion

People also use #334271 with

Teal Blue 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 9.7:1. Use

Subtle surface Use #D3D8E6 for cards and hover fills. Tint 80

Avoid beside #383371 — 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 #334271 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: #334271;
  --color-base-rgb: 51 66 113;
  --color-base-oklch: oklch(39.0% 0.082 269.0);
  --color-50: #F4F6FB;
  --color-100: #E2E7F3;
  --color-200: #C7CEE6;
  --color-300: #9FABD0;
  --color-400: #7A89B8;
  --color-500: #596A9C;
  --color-600: #495579;
  --color-700: #384057;
  --color-800: #272C3A;
  --color-900: #191C24;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  classic-blue: {
    50: '#F4F6FB',
    100: '#E2E7F3',
    200: '#C7CEE6',
    300: '#9FABD0',
    400: '#7A89B8',
    500: '#596A9C',
    600: '#495579',
    700: '#384057',
    800: '#272C3A',
    900: '#191C24',
  },
}

$base: #334271;
$base-ink: #FFFFFF;
$base-50: #F4F6FB;
$base-100: #E2E7F3;
$base-200: #C7CEE6;
$base-300: #9FABD0;
$base-400: #7A89B8;
$base-500: #596A9C;
$base-600: #495579;
$base-700: #384057;
$base-800: #272C3A;
$base-900: #191C24;
$base-hover: #28355A;
$base-subtle: #BCC3DA;

{
    "color": {
        "base": {
            "value": "#334271",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F6FB",
                "type": "color"
            },
            "100": {
                "value": "#E2E7F3",
                "type": "color"
            },
            "200": {
                "value": "#C7CEE6",
                "type": "color"
            },
            "300": {
                "value": "#9FABD0",
                "type": "color"
            },
            "400": {
                "value": "#7A89B8",
                "type": "color"
            },
            "500": {
                "value": "#596A9C",
                "type": "color"
            },
            "600": {
                "value": "#495579",
                "type": "color"
            },
            "700": {
                "value": "#384057",
                "type": "color"
            },
            "800": {
                "value": "#272C3A",
                "type": "color"
            },
            "900": {
                "value": "#191C24",
                "type": "color"
            }
        }
    }
}