What color is #2D4E73?

#2D4E73 is a dark blue. In RGB it is rgb(45, 78, 115), and in HSL hsl(212, 44%, 31%).

Is #2D4E73 accessible as text?

On white, #2D4E73 has a contrast ratio of 8.58:1 (passes WCAG AA for body text); on black it is 2.45:1 (fails). For text placed on #2D4E73, use white for the best readability.

What is the closest Tailwind color to #2D4E73?

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

What colors go well with #2D4E73?

#2D4E73 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #72512C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #2D4E73 below.

Is #2D4E73 good for buttons?

#2D4E73 works well for buttons and highlights, but use white text on #2D4E73 — black text only reaches 2.45:1, below the 4.5:1 needed for normal-size labels.

Is #2D4E73 the same as CSS darkslategray?

No — #2D4E73 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#2D4E73 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #2D4E73

Not just a swatch — here's how #2D4E73 works with other colors. Named schemes with #2D4E73 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #2D4E73 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.

Nordic Calm Accent · 5 colors

Accent #2D4E73 Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 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 #2D4E73 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #517093

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 #2D4E73 Secondary #7F4537 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.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #2D4E73 Secondary #697583 Support #959386 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 #2D4E73 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 30/100

Cool

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

Softness 39/100

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 45/100

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 20/100

Very low

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

UI accent fit 67/100

High

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

Surface fit 36/100

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 #2D4E73

For UI

For branding

For interior

For fashion

People also use #2D4E73 with

Dark Cyan Yale Blue Coffee 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 8.6:1. Use

Subtle surface Use #D1DBE7 for cards and hover fills. Tint 80

Avoid beside #2C3672 — 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 #2D4E73 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: #2D4E73;
  --color-base-rgb: 45 78 115;
  --color-base-oklch: oklch(41.6% 0.073 252.4);
  --color-50: #F4F7FB;
  --color-100: #E1EAF4;
  --color-200: #C4D5E8;
  --color-300: #9BB6D4;
  --color-400: #7597BD;
  --color-500: #5478A1;
  --color-600: #465F7C;
  --color-700: #364659;
  --color-800: #26303B;
  --color-900: #191E25;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  classic-blue: {
    50: '#F4F7FB',
    100: '#E1EAF4',
    200: '#C4D5E8',
    300: '#9BB6D4',
    400: '#7597BD',
    500: '#5478A1',
    600: '#465F7C',
    700: '#364659',
    800: '#26303B',
    900: '#191E25',
  },
}

$base: #2D4E73;
$base-ink: #FFFFFF;
$base-50: #F4F7FB;
$base-100: #E1EAF4;
$base-200: #C4D5E8;
$base-300: #9BB6D4;
$base-400: #7597BD;
$base-500: #5478A1;
$base-600: #465F7C;
$base-700: #364659;
$base-800: #26303B;
$base-900: #191E25;
$base-hover: #233D5B;
$base-subtle: #B9C9DC;

{
    "color": {
        "base": {
            "value": "#2D4E73",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F7FB",
                "type": "color"
            },
            "100": {
                "value": "#E1EAF4",
                "type": "color"
            },
            "200": {
                "value": "#C4D5E8",
                "type": "color"
            },
            "300": {
                "value": "#9BB6D4",
                "type": "color"
            },
            "400": {
                "value": "#7597BD",
                "type": "color"
            },
            "500": {
                "value": "#5478A1",
                "type": "color"
            },
            "600": {
                "value": "#465F7C",
                "type": "color"
            },
            "700": {
                "value": "#364659",
                "type": "color"
            },
            "800": {
                "value": "#26303B",
                "type": "color"
            },
            "900": {
                "value": "#191E25",
                "type": "color"
            }
        }
    }
}