What color is #457BEF?

#457BEF is a medium, vivid blue. In RGB it is rgb(69, 123, 239), and in HSL hsl(221, 84%, 60%).

Is #457BEF accessible as text?

On white, #457BEF has a contrast ratio of 3.94:1 (fails WCAG AA for body text); on black it is 5.33:1 (passes). For text placed on #457BEF, use black for the best readability.

What is the closest Tailwind color to #457BEF?

The nearest Tailwind CSS token is blue-500 (#2B7FFF).

What colors go well with #457BEF?

#457BEF pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #EFB843. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #457BEF below.

Is #457BEF good for buttons?

#457BEF works well for buttons and highlights, but use black text on #457BEF — white text only reaches 3.94:1, below the 4.5:1 needed for normal-size labels.

Is #457BEF the same as CSS royalblue?

No — #457BEF is not the CSS named color royalblue, but royalblue (#4169E1) is the closest CSS named color.

#457BEF Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #457BEF

Not just a swatch — here's how #457BEF works with other colors. Named schemes with #457BEF in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #457BEF Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

Azure 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 #457BEF Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #6FA3FF

Azure is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Azure.

Vintage Leather Lead · 5 colors

Lead #457BEF Secondary #7F4536 Surface #EED7C2 Accent #375246 Anchor #57223A

Azure 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 #457BEF Surface #F6E5D8 Anchor #5B2144 Accent #E4C2CA Secondary #322B2F

Azure sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #457BEF Secondary #98AED7 Support #9D8F88 Ink #18140F

Azure 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 Azure carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #457BEF 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 8/100

Cool

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

Softness 40/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 42/100

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 28/100

Low

A faint retro warmth without tipping into sepia.

Luxury 43/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 50/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 83/100

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 66/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #457BEF

For UI

For branding

For interior

For fashion

People also use #457BEF with

Bright Sky Iris Honey 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 4.7:1. Use

Subtle surface Use #DEE6F7 for cards and hover fills. Tint 80

Avoid beside #4643EF — 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 #457BEF 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: #457BEF;
  --color-base-rgb: 69 123 239;
  --color-base-oklch: oklch(60.8% 0.184 263.2);
  --color-50: #F0F5FE;
  --color-100: #D8E4FD;
  --color-200: #B4CAF8;
  --color-300: #81A4EE;
  --color-400: #5380DF;
  --color-500: #305FC4;
  --color-600: #2D4E95;
  --color-700: #253B69;
  --color-800: #1C2945;
  --color-900: #131A2A;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  azure: {
    50: '#F0F5FE',
    100: '#D8E4FD',
    200: '#B4CAF8',
    300: '#81A4EE',
    400: '#5380DF',
    500: '#305FC4',
    600: '#2D4E95',
    700: '#253B69',
    800: '#1C2945',
    900: '#131A2A',
  },
}

$base: #457BEF;
$base-ink: #141310;
$base-50: #F0F5FE;
$base-100: #D8E4FD;
$base-200: #B4CAF8;
$base-300: #81A4EE;
$base-400: #5380DF;
$base-500: #305FC4;
$base-600: #2D4E95;
$base-700: #253B69;
$base-800: #1C2945;
$base-900: #131A2A;
$base-hover: #1455E1;
$base-subtle: #CDD9F4;

{
    "color": {
        "base": {
            "value": "#457BEF",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F5FE",
                "type": "color"
            },
            "100": {
                "value": "#D8E4FD",
                "type": "color"
            },
            "200": {
                "value": "#B4CAF8",
                "type": "color"
            },
            "300": {
                "value": "#81A4EE",
                "type": "color"
            },
            "400": {
                "value": "#5380DF",
                "type": "color"
            },
            "500": {
                "value": "#305FC4",
                "type": "color"
            },
            "600": {
                "value": "#2D4E95",
                "type": "color"
            },
            "700": {
                "value": "#253B69",
                "type": "color"
            },
            "800": {
                "value": "#1C2945",
                "type": "color"
            },
            "900": {
                "value": "#131A2A",
                "type": "color"
            }
        }
    }
}

Palettes built on #457BEF

Color Lab

Pairs with #457BEF

UI roles & guardrails

In real applications

Scales

Every model

Export