What color is #173EEE?

#173EEE is a medium, vivid blue. In RGB it is rgb(23, 62, 238), and in HSL hsl(229, 86%, 51%).

Is #173EEE accessible as text?

On white, #173EEE has a contrast ratio of 7.09:1 (passes WCAG AA for body text); on black it is 2.96:1 (fails). For text placed on #173EEE, use white for the best readability.

What is the closest Tailwind color to #173EEE?

The nearest Tailwind CSS token is blue-700 (#1447E6).

What colors go well with #173EEE?

#173EEE pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #EEC617. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #173EEE below.

Is #173EEE good for buttons?

#173EEE works well for buttons and highlights, but use white text on #173EEE — black text only reaches 2.96:1, below the 4.5:1 needed for normal-size labels.

Is #173EEE the same as CSS blue?

No — #173EEE is not the CSS named color blue, but blue (#0000FF) is the closest CSS named color.

#173EEE Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #173EEE

Not just a swatch — here's how #173EEE works with other colors. Named schemes with #173EEE in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #173EEE Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #3B70FF

Neon 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 Neon Blue.

Coastal Morning Lead · 5 colors

Lead #173EEE Accent #A5C4C2 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

Neon Blue 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 #173EEE Surface #F6E5D8 Anchor #5B2144 Accent #E5C2CA Secondary #322B2F

Neon Blue 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 #173EEE Secondary #6C86BF Support #9D8F88 Ink #18140F

Neon 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 Neon Blue carrying the quiet middle.

Sunset Warmth Glow · 5 colors

Glow #173EEE Secondary #E86A75 Accent #F79251 Anchor #573B58 Surface #F7E7D7

Neon Blue 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 #173EEE 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 24/100

Low

Firm and assertive — carries weight and contrast.

Depth 58/100

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 4/100

Very low

Clean and current — no dusty, aged cast.

Luxury 48/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 100/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 54/100

Moderate

Workable accent with care around contrast.

Surface fit 9/100

Very low

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

Print safety 53/100

Moderate

Prints close, with a slight loss of vibrancy.

Pairs with #173EEE

For UI

For branding

For interior

For fashion

People also use #173EEE with

Lagoon Blue Violet Mustard Yellow Gainsboro Gunmetal 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 7.1:1. Use

Subtle surface Use #D7DCF5 for cards and hover fills. Tint 80

Avoid beside #3717EE — 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 #173EEE 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: #173EEE;
  --color-base-rgb: 23 62 238;
  --color-base-oklch: oklch(48.3% 0.261 265.4);
  --color-50: #F0F3FE;
  --color-100: #D8DFFD;
  --color-200: #B3C0F9;
  --color-300: #8094EF;
  --color-400: #526CE0;
  --color-500: #2F4AC6;
  --color-600: #2B3F96;
  --color-700: #25316A;
  --color-800: #1C2345;
  --color-900: #13172A;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  neon-blue: {
    50: '#F0F3FE',
    100: '#D8DFFD',
    200: '#B3C0F9',
    300: '#8094EF',
    400: '#526CE0',
    500: '#2F4AC6',
    600: '#2B3F96',
    700: '#25316A',
    800: '#1C2345',
    900: '#13172A',
  },
}

$base: #173EEE;
$base-ink: #FFFFFF;
$base-50: #F0F3FE;
$base-100: #D8DFFD;
$base-200: #B3C0F9;
$base-300: #8094EF;
$base-400: #526CE0;
$base-500: #2F4AC6;
$base-600: #2B3F96;
$base-700: #25316A;
$base-800: #1C2345;
$base-900: #13172A;
$base-hover: #0F2FC2;
$base-subtle: #C1CAF2;

{
    "color": {
        "base": {
            "value": "#173EEE",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F3FE",
                "type": "color"
            },
            "100": {
                "value": "#D8DFFD",
                "type": "color"
            },
            "200": {
                "value": "#B3C0F9",
                "type": "color"
            },
            "300": {
                "value": "#8094EF",
                "type": "color"
            },
            "400": {
                "value": "#526CE0",
                "type": "color"
            },
            "500": {
                "value": "#2F4AC6",
                "type": "color"
            },
            "600": {
                "value": "#2B3F96",
                "type": "color"
            },
            "700": {
                "value": "#25316A",
                "type": "color"
            },
            "800": {
                "value": "#1C2345",
                "type": "color"
            },
            "900": {
                "value": "#13172A",
                "type": "color"
            }
        }
    }
}

Palettes built on #173EEE

Color Lab

Pairs with #173EEE

UI roles & guardrails

In real applications

Scales

Every model

Export