What color is #3A84F2?

#3A84F2 is a medium, vivid blue. In RGB it is rgb(58, 132, 242), and in HSL hsl(216, 88%, 59%).

Is #3A84F2 accessible as text?

On white, #3A84F2 has a contrast ratio of 3.64:1 (fails WCAG AA for body text); on black it is 5.76:1 (passes). For text placed on #3A84F2, use black for the best readability.

What is the closest Tailwind color to #3A84F2?

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

What colors go well with #3A84F2?

#3A84F2 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #F2A93A. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3A84F2 below.

Is #3A84F2 good for buttons?

#3A84F2 works well for buttons and highlights, but use black text on #3A84F2 — white text only reaches 3.64:1, below the 4.5:1 needed for normal-size labels.

Is #3A84F2 the same as CSS dodgerblue?

No — #3A84F2 is not the CSS named color dodgerblue, but dodgerblue (#1E90FF) is the closest CSS named color.

#3A84F2 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3A84F2

Not just a swatch — here's how #3A84F2 works with other colors. Named schemes with #3A84F2 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #3A84F2 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.

Nordic Calm Accent · 5 colors

Accent #3A84F2 Secondary #AEB4B8 Surface #F1F2F0 Support #7D93A6 Anchor #2E3236

Signal 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 #3A84F2 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #69ACFF

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.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #3A84F2 Secondary #9AB4DB Support #9D8F89 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.

Modern Café Dominant · 5 colors

Dominant #3A84F2 Anchor #3B2924 Surface #EAE5D0 Accent #789E79 Secondary #393933

Signal Blue anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

Build a working theme in the generator →

Color Lab

How #3A84F2 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 6/100

Cool

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

Softness 41/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 40/100

Low

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 42/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 70/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 80/100

Very high

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

Surface fit 19/100

Very low

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

Print safety 64/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #3A84F2

For UI

For branding

For interior

For fashion

People also use #3A84F2 with

Electric Blue Han Purple 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 5.1:1. Use

Subtle surface Use #DDE7F7 for cards and hover fills. Tint 80

Avoid beside #3A47F2 — 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 #3A84F2 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: #3A84F2;
  --color-base-rgb: 58 132 242;
  --color-base-oklch: oklch(62.4% 0.181 258.5);
  --color-50: #F0F6FE;
  --color-100: #D8E7FD;
  --color-200: #B2CFFA;
  --color-300: #7FACF0;
  --color-400: #508AE2;
  --color-500: #2D6BC8;
  --color-600: #2A5698;
  --color-700: #24406B;
  --color-800: #1B2C46;
  --color-900: #131C2B;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  signal-blue: {
    50: '#F0F6FE',
    100: '#D8E7FD',
    200: '#B2CFFA',
    300: '#7FACF0',
    400: '#508AE2',
    500: '#2D6BC8',
    600: '#2A5698',
    700: '#24406B',
    800: '#1B2C46',
    900: '#131C2B',
  },
}

$base: #3A84F2;
$base-ink: #141310;
$base-50: #F0F6FE;
$base-100: #D8E7FD;
$base-200: #B2CFFA;
$base-300: #7FACF0;
$base-400: #508AE2;
$base-500: #2D6BC8;
$base-600: #2A5698;
$base-700: #24406B;
$base-800: #1B2C46;
$base-900: #131C2B;
$base-hover: #0E63E2;
$base-subtle: #CBDBF5;

{
    "color": {
        "base": {
            "value": "#3A84F2",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F6FE",
                "type": "color"
            },
            "100": {
                "value": "#D8E7FD",
                "type": "color"
            },
            "200": {
                "value": "#B2CFFA",
                "type": "color"
            },
            "300": {
                "value": "#7FACF0",
                "type": "color"
            },
            "400": {
                "value": "#508AE2",
                "type": "color"
            },
            "500": {
                "value": "#2D6BC8",
                "type": "color"
            },
            "600": {
                "value": "#2A5698",
                "type": "color"
            },
            "700": {
                "value": "#24406B",
                "type": "color"
            },
            "800": {
                "value": "#1B2C46",
                "type": "color"
            },
            "900": {
                "value": "#131C2B",
                "type": "color"
            }
        }
    }
}