What color is #024DAA?

#024DAA is a dark, vivid blue. In RGB it is rgb(2, 77, 170), and in HSL hsl(213, 98%, 34%).

Is #024DAA accessible as text?

On white, #024DAA has a contrast ratio of 7.94:1 (passes WCAG AA for body text); on black it is 2.64:1 (fails). For text placed on #024DAA, use white for the best readability.

What is the closest Tailwind color to #024DAA?

The nearest Tailwind CSS token is blue-800 (#193CB8).

What colors go well with #024DAA?

#024DAA pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #AC5F02. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #024DAA below.

Is #024DAA good for buttons?

#024DAA works well for buttons and highlights, but use white text on #024DAA — black text only reaches 2.64:1, below the 4.5:1 needed for normal-size labels.

Is #024DAA the same as CSS darkslateblue?

No — #024DAA is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#024DAA Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #024DAA

Not just a swatch — here's how #024DAA works with other colors. Named schemes with #024DAA in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #024DAA Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Cobalt 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 #024DAA Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #3973C9

Cobalt 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 Cobalt Blue.

Vintage Leather Lead · 5 colors

Lead #024DAA Secondary #7F4537 Surface #E1DDC1 Accent #375246 Anchor #57223A

Cobalt 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 #024DAA Surface #EDE9D6 Anchor #5A2144 Accent #E4C2CA Secondary #322B2F

Cobalt 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 #024DAA Secondary #667C9D Support #9D8F89 Ink #16140F

Cobalt 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 Cobalt Blue carrying the quiet middle.

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Color Lab

How #024DAA 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 7/100

Cool

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

Softness 32/100

Low

Middle-weight — neither delicate nor heavy.

Depth 58/100

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 31/100

Low

A faint retro warmth without tipping into sepia.

Luxury 59/100

Moderate

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

Brand distinctiveness 44/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 85/100

Very high

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

Surface fit 11/100

Very low

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

Print safety 68/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #024DAA

For UI

For branding

For interior

For fashion

People also use #024DAA with

Dark Turquoise Zaffre Brown 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 7.9:1. Use

Subtle surface Use #C6DBF5 for cards and hover fills. Tint 80

Avoid beside #0216AC — 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 #024DAA 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: #024DAA;
  --color-base-rgb: 2 77 170;
  --color-base-oklch: oklch(44.1% 0.163 258.2);
  --color-50: #F0F7FE;
  --color-100: #D8E9FD;
  --color-200: #B1D2FC;
  --color-300: #78B1F7;
  --color-400: #4891EA;
  --color-500: #2472D1;
  --color-600: #245B9E;
  --color-700: #20436F;
  --color-800: #192E48;
  --color-900: #111D2C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  cobalt-blue: {
    50: '#F0F7FE',
    100: '#D8E9FD',
    200: '#B1D2FC',
    300: '#78B1F7',
    400: '#4891EA',
    500: '#2472D1',
    600: '#245B9E',
    700: '#20436F',
    800: '#192E48',
    900: '#111D2C',
  },
}

$base: #024DAA;
$base-ink: #FFFFFF;
$base-50: #F0F7FE;
$base-100: #D8E9FD;
$base-200: #B1D2FC;
$base-300: #78B1F7;
$base-400: #4891EA;
$base-500: #2472D1;
$base-600: #245B9E;
$base-700: #20436F;
$base-800: #192E48;
$base-900: #111D2C;
$base-hover: #013F89;
$base-subtle: #A7C9F2;

{
    "color": {
        "base": {
            "value": "#024DAA",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F7FE",
                "type": "color"
            },
            "100": {
                "value": "#D8E9FD",
                "type": "color"
            },
            "200": {
                "value": "#B1D2FC",
                "type": "color"
            },
            "300": {
                "value": "#78B1F7",
                "type": "color"
            },
            "400": {
                "value": "#4891EA",
                "type": "color"
            },
            "500": {
                "value": "#2472D1",
                "type": "color"
            },
            "600": {
                "value": "#245B9E",
                "type": "color"
            },
            "700": {
                "value": "#20436F",
                "type": "color"
            },
            "800": {
                "value": "#192E48",
                "type": "color"
            },
            "900": {
                "value": "#111D2C",
                "type": "color"
            }
        }
    }
}

Palettes built on #024DAA

Color Lab

Pairs with #024DAA

UI roles & guardrails

In real applications

Scales

Every model

Export