What color is #3373FC?

#3373FC is a medium, vivid blue. In RGB it is rgb(51, 115, 252), and in HSL hsl(221, 97%, 59%).

Is #3373FC accessible as text?

On white, #3373FC has a contrast ratio of 4.20:1 (fails WCAG AA for body text); on black it is 5.00:1 (passes). For text placed on #3373FC, use black for the best readability.

What is the closest Tailwind color to #3373FC?

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

What colors go well with #3373FC?

#3373FC pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #FCBC31. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3373FC below.

Is #3373FC good for buttons?

#3373FC works well for buttons and highlights, but use black text on #3373FC — white text only reaches 4.20:1, below the 4.5:1 needed for normal-size labels.

Is #3373FC the same as CSS royalblue?

No — #3373FC is not the CSS named color royalblue, but royalblue (#4169E1) is the closest CSS named color.

#3373FC Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3373FC

Not just a swatch — here's how #3373FC works with other colors. Named schemes with #3373FC in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #3373FC Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #5F9DFF

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.

Coastal Morning Lead · 5 colors

Lead #3373FC 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.

Berry & Cream Lead · 5 colors

Lead #3373FC Surface #F6E5D8 Anchor #5A2144 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 #3373FC Secondary #90AAD9 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.

Sunset Warmth Glow · 5 colors

Glow #3373FC Secondary #E76A75 Accent #F79151 Anchor #573B58 Surface #EEEBD6

Azure glows at the center of this sunset palette, joined by coral and gold, deepened by a plum anchor and cooled with cream.

Build a working theme in the generator →

Color Lab

How #3373FC 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 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 44/100

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 19/100

Very low

Clean and current — no dusty, aged cast.

Luxury 42/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 83/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 74/100

High

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

Surface fit 16/100

Very low

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

Print safety 60/100

Moderate

Prints close, with a slight loss of vibrancy.

Pairs with #3373FC

For UI

For branding

For interior

For fashion

People also use #3373FC with

Electric Blue Han Purple Honey Gainsboro Charcoal

UI roles & guardrails

Primary action Too mid-tone for a filled button — darken for the fill. AA Large

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 4.4:1. Use

Subtle surface Use #DBE5F9 for cards and hover fills. Tint 80

Avoid beside #3431FC — 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 #3373FC 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: #3373FC;
  --color-base-rgb: 51 115 252;
  --color-base-oklch: oklch(59.5% 0.215 262.8);
  --color-50: #F0F5FE;
  --color-100: #D8E4FD;
  --color-200: #B1C8FC;
  --color-300: #79A1F6;
  --color-400: #497CE9;
  --color-500: #255BD0;
  --color-600: #254B9D;
  --color-700: #20396F;
  --color-800: #192848;
  --color-900: #111A2C;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  azure: {
    50: '#F0F5FE',
    100: '#D8E4FD',
    200: '#B1C8FC',
    300: '#79A1F6',
    400: '#497CE9',
    500: '#255BD0',
    600: '#254B9D',
    700: '#20396F',
    800: '#192848',
    900: '#111A2C',
  },
}

$base: #3373FC;
$base-ink: #141310;
$base-50: #F0F5FE;
$base-100: #D8E4FD;
$base-200: #B1C8FC;
$base-300: #79A1F6;
$base-400: #497CE9;
$base-500: #255BD0;
$base-600: #254B9D;
$base-700: #20396F;
$base-800: #192848;
$base-900: #111A2C;
$base-hover: #044EED;
$base-subtle: #C9D7F7;

{
    "color": {
        "base": {
            "value": "#3373FC",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F5FE",
                "type": "color"
            },
            "100": {
                "value": "#D8E4FD",
                "type": "color"
            },
            "200": {
                "value": "#B1C8FC",
                "type": "color"
            },
            "300": {
                "value": "#79A1F6",
                "type": "color"
            },
            "400": {
                "value": "#497CE9",
                "type": "color"
            },
            "500": {
                "value": "#255BD0",
                "type": "color"
            },
            "600": {
                "value": "#254B9D",
                "type": "color"
            },
            "700": {
                "value": "#20396F",
                "type": "color"
            },
            "800": {
                "value": "#192848",
                "type": "color"
            },
            "900": {
                "value": "#111A2C",
                "type": "color"
            }
        }
    }
}

Palettes built on #3373FC

Color Lab

Pairs with #3373FC

UI roles & guardrails

In real applications

Scales

Every model

Export