What color is #4580DF?

#4580DF is a medium, vivid blue. In RGB it is rgb(69, 128, 223), and in HSL hsl(217, 71%, 57%).

Is #4580DF accessible as text?

On white, #4580DF has a contrast ratio of 3.88:1 (fails WCAG AA for body text); on black it is 5.41:1 (passes). For text placed on #4580DF, use black for the best readability.

What is the closest Tailwind color to #4580DF?

The nearest Tailwind CSS token is sky-600 (#0084D1).

What colors go well with #4580DF?

#4580DF pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #DFA443. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #4580DF below.

Is #4580DF good for buttons?

#4580DF works well for buttons and highlights, but use black text on #4580DF — white text only reaches 3.88:1, below the 4.5:1 needed for normal-size labels.

Is #4580DF the same as CSS dodgerblue?

No — #4580DF is not the CSS named color dodgerblue, but dodgerblue (#1E90FF) is the closest CSS named color.

#4580DF Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #4580DF

Not just a swatch — here's how #4580DF works with other colors. Named schemes with #4580DF in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #4580DF Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Signal 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 #4580DF Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #70A7FF

Signal 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 Signal Blue.

Vintage Leather Lead · 5 colors

Lead #4580DF Secondary #7F4536 Surface #E1DDC1 Accent #375246 Anchor #57223A

Signal 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 #4580DF Surface #F6E5D8 Anchor #5A2144 Accent #E4C2CA Secondary #322B2F

Signal 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 #4580DF Secondary #99AED1 Support #9D8F88 Ink #16140F

Signal 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 Signal Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #4580DF 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 9/100

Cool

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

Softness 44/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 41/100

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 36/100

Low

A faint retro warmth without tipping into sepia.

Luxury 45/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 42/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 89/100

Very high

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

Surface fit 18/100

Very low

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

Print safety 69/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #4580DF

For UI

For branding

For interior

For fashion

People also use #4580DF with

Turquoise Iris Marigold Gainsboro Charcoal

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AA

Body text Do not use for body copy on light surfaces. Avoid

Large display Fine for headings 24px+ on white. Pass

Background Pair with #141310 text at 4.8:1. Use

Subtle surface Use #DEE6F4 for cards and hover fills. Tint 80

Avoid beside #434BDF — 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 #4580DF at work across the surfaces designers actually ship.

Website / UI

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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: #4580DF;
  --color-base-rgb: 69 128 223;
  --color-base-oklch: oklch(60.8% 0.157 259.5);
  --color-50: #F1F6FD;
  --color-100: #DBE7FA;
  --color-200: #B9CFF3;
  --color-300: #8AADE5;
  --color-400: #5E8BD4;
  --color-500: #3C6CB9;
  --color-600: #35578D;
  --color-700: #2B4164;
  --color-800: #1F2C42;
  --color-900: #151C28;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  signal-blue: {
    50: '#F1F6FD',
    100: '#DBE7FA',
    200: '#B9CFF3',
    300: '#8AADE5',
    400: '#5E8BD4',
    500: '#3C6CB9',
    600: '#35578D',
    700: '#2B4164',
    800: '#1F2C42',
    900: '#151C28',
  },
}

$base: #4580DF;
$base-ink: #141310;
$base-50: #F1F6FD;
$base-100: #DBE7FA;
$base-200: #B9CFF3;
$base-300: #8AADE5;
$base-400: #5E8BD4;
$base-500: #3C6CB9;
$base-600: #35578D;
$base-700: #2B4164;
$base-800: #1F2C42;
$base-900: #151C28;
$base-hover: #2261C7;
$base-subtle: #CCDAF0;

{
    "color": {
        "base": {
            "value": "#4580DF",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F6FD",
                "type": "color"
            },
            "100": {
                "value": "#DBE7FA",
                "type": "color"
            },
            "200": {
                "value": "#B9CFF3",
                "type": "color"
            },
            "300": {
                "value": "#8AADE5",
                "type": "color"
            },
            "400": {
                "value": "#5E8BD4",
                "type": "color"
            },
            "500": {
                "value": "#3C6CB9",
                "type": "color"
            },
            "600": {
                "value": "#35578D",
                "type": "color"
            },
            "700": {
                "value": "#2B4164",
                "type": "color"
            },
            "800": {
                "value": "#1F2C42",
                "type": "color"
            },
            "900": {
                "value": "#151C28",
                "type": "color"
            }
        }
    }
}

Palettes built on #4580DF

Color Lab

Pairs with #4580DF

UI roles & guardrails

In real applications

Scales

Every model

Export