What color is #1684DF?

#1684DF is a medium, vivid cyan-blue. In RGB it is rgb(22, 132, 223), and in HSL hsl(207, 82%, 48%).

Is #1684DF accessible as text?

On white, #1684DF has a contrast ratio of 3.89:1 (fails WCAG AA for body text); on black it is 5.40:1 (passes). For text placed on #1684DF, use black for the best readability.

What is the closest Tailwind color to #1684DF?

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

What colors go well with #1684DF?

#1684DF pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #DF7016. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #1684DF below.

Is #1684DF good for buttons?

#1684DF works well for buttons and highlights, but use black text on #1684DF — white text only reaches 3.89:1, below the 4.5:1 needed for normal-size labels.

Is #1684DF the same as CSS dodgerblue?

No — #1684DF is not the CSS named color dodgerblue, but dodgerblue (#1E90FF) is the closest CSS named color.

#1684DF Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #1684DF

Not just a swatch — here's how #1684DF works with other colors. Named schemes with #1684DF in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #1684DF 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 #1684DF Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #55ABFF

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 #1684DF Secondary #7F4537 Surface #E1DDC0 Accent #375245 Anchor #57233B

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 #1684DF Surface #EDE9D6 Anchor #5A2145 Accent #E4C2CB 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 #1684DF Secondary #91AFD0 Support #959386 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 #1684DF 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 4/100

Cool

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

Softness 42/100

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 33/100

Low

A faint retro warmth without tipping into sepia.

Luxury 44/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 45/100

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 17/100

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 #1684DF

For UI

For branding

For interior

For fashion

People also use #1684DF with

Turquoise Medium Blue Ochre 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 #D5E6F4 for cards and hover fills. Tint 80

Avoid beside #1642DF — 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 #1684DF 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: #1684DF;
  --color-base-rgb: 22 132 223;
  --color-base-oklch: oklch(60.4% 0.165 250.4);
  --color-50: #F0F8FE;
  --color-100: #D9ECFC;
  --color-200: #B5DAF8;
  --color-300: #83BDED;
  --color-400: #55A0DD;
  --color-500: #3282C3;
  --color-600: #2E6694;
  --color-700: #264B69;
  --color-800: #1D3244;
  --color-900: #14202A;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  signal-blue: {
    50: '#F0F8FE',
    100: '#D9ECFC',
    200: '#B5DAF8',
    300: '#83BDED',
    400: '#55A0DD',
    500: '#3282C3',
    600: '#2E6694',
    700: '#264B69',
    800: '#1D3244',
    900: '#14202A',
  },
}

$base: #1684DF;
$base-ink: #141310;
$base-50: #F0F8FE;
$base-100: #D9ECFC;
$base-200: #B5DAF8;
$base-300: #83BDED;
$base-400: #55A0DD;
$base-500: #3282C3;
$base-600: #2E6694;
$base-700: #264B69;
$base-800: #1D3244;
$base-900: #14202A;
$base-hover: #126AB2;
$base-subtle: #BEDAF0;

{
    "color": {
        "base": {
            "value": "#1684DF",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F8FE",
                "type": "color"
            },
            "100": {
                "value": "#D9ECFC",
                "type": "color"
            },
            "200": {
                "value": "#B5DAF8",
                "type": "color"
            },
            "300": {
                "value": "#83BDED",
                "type": "color"
            },
            "400": {
                "value": "#55A0DD",
                "type": "color"
            },
            "500": {
                "value": "#3282C3",
                "type": "color"
            },
            "600": {
                "value": "#2E6694",
                "type": "color"
            },
            "700": {
                "value": "#264B69",
                "type": "color"
            },
            "800": {
                "value": "#1D3244",
                "type": "color"
            },
            "900": {
                "value": "#14202A",
                "type": "color"
            }
        }
    }
}

Palettes built on #1684DF

Color Lab

Pairs with #1684DF

UI roles & guardrails

In real applications

Scales

Every model

Export