What color is #045A74?

#045A74 is a dark, vivid cyan. In RGB it is rgb(4, 90, 116), and in HSL hsl(194, 93%, 24%).

Is #045A74 accessible as text?

On white, #045A74 has a contrast ratio of 7.72:1 (passes WCAG AA for body text); on black it is 2.72:1 (fails). For text placed on #045A74, use white for the best readability.

What is the closest Tailwind color to #045A74?

The nearest Tailwind CSS token is cyan-800 (#005F78).

What colors go well with #045A74?

#045A74 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #761F04. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #045A74 below.

Is #045A74 good for buttons?

#045A74 works well for buttons and highlights, but use white text on #045A74 — black text only reaches 2.72:1, below the 4.5:1 needed for normal-size labels.

Is #045A74 the same as CSS darkslategray?

No — #045A74 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#045A74 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #045A74

Not just a swatch — here's how #045A74 works with other colors. Named schemes with #045A74 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #045A74 Accent #A6C4BF Surface #DEDABF Secondary #9AA0A0 Anchor #1E344A

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 #045A74 Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A6 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 #045A74 Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #3E7C95

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 #045A74 Secondary #6F5116 Surface #E2DCC0 Accent #385244 Anchor #56233D

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 #045A74 Secondary #687D86 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 #045A74 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 26/100

Cool

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

Softness 39/100

Low

Middle-weight — neither delicate nor heavy.

Depth 55/100

Moderate

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

Naturalness 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 48/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 61/100

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 75/100

High

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

Surface fit 32/100

Low

Usable as a tinted surface in measured doses.

Print safety 78/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #045A74

For UI

For branding

For interior

For fashion

People also use #045A74 with

Shamrock Green Midnight Blue Wine Red Platinum Dark Slate Gray

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 7.7:1. Use

Subtle surface Use #BEE6F2 for cards and hover fills. Tint 80

Avoid beside #043676 — 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 #045A74 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: #045A74;
  --color-base-rgb: 4 90 116;
  --color-base-oklch: oklch(43.6% 0.082 226.3);
  --color-50: #F0FBFE;
  --color-100: #D8F5FD;
  --color-200: #B1EAFC;
  --color-300: #7CD8F4;
  --color-400: #4CC2E6;
  --color-500: #29A6CC;
  --color-600: #27809B;
  --color-700: #225B6D;
  --color-800: #1A3C47;
  --color-900: #12252B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  classic-blue: {
    50: '#F0FBFE',
    100: '#D8F5FD',
    200: '#B1EAFC',
    300: '#7CD8F4',
    400: '#4CC2E6',
    500: '#29A6CC',
    600: '#27809B',
    700: '#225B6D',
    800: '#1A3C47',
    900: '#12252B',
  },
}

$base: #045A74;
$base-ink: #FFFFFF;
$base-50: #F0FBFE;
$base-100: #D8F5FD;
$base-200: #B1EAFC;
$base-300: #7CD8F4;
$base-400: #4CC2E6;
$base-500: #29A6CC;
$base-600: #27809B;
$base-700: #225B6D;
$base-800: #1A3C47;
$base-900: #12252B;
$base-hover: #03495E;
$base-subtle: #9CDBEE;

{
    "color": {
        "base": {
            "value": "#045A74",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FBFE",
                "type": "color"
            },
            "100": {
                "value": "#D8F5FD",
                "type": "color"
            },
            "200": {
                "value": "#B1EAFC",
                "type": "color"
            },
            "300": {
                "value": "#7CD8F4",
                "type": "color"
            },
            "400": {
                "value": "#4CC2E6",
                "type": "color"
            },
            "500": {
                "value": "#29A6CC",
                "type": "color"
            },
            "600": {
                "value": "#27809B",
                "type": "color"
            },
            "700": {
                "value": "#225B6D",
                "type": "color"
            },
            "800": {
                "value": "#1A3C47",
                "type": "color"
            },
            "900": {
                "value": "#12252B",
                "type": "color"
            }
        }
    }
}

Palettes built on #045A74

Color Lab

Pairs with #045A74

UI roles & guardrails

In real applications

Scales

Every model

Export