What color is #2187FD?

#2187FD is a medium, vivid blue. In RGB it is rgb(33, 135, 253), and in HSL hsl(212, 98%, 56%).

Is #2187FD accessible as text?

On white, #2187FD has a contrast ratio of 3.53:1 (fails WCAG AA for body text); on black it is 5.95:1 (passes). For text placed on #2187FD, use black for the best readability.

What is the closest Tailwind color to #2187FD?

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

What colors go well with #2187FD?

#2187FD pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #FD9621. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #2187FD below.

Is #2187FD good for buttons?

#2187FD works well for buttons and highlights, but use black text on #2187FD — white text only reaches 3.53:1, below the 4.5:1 needed for normal-size labels.

Is #2187FD the same as CSS dodgerblue?

No — #2187FD is not the CSS named color dodgerblue, but dodgerblue (#1E90FF) is the closest CSS named color.

#2187FD Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #2187FD

Not just a swatch — here's how #2187FD works with other colors. Named schemes with #2187FD in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #2187FD Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #5BAFFF

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.

Nordic Calm Accent · 5 colors

Accent #2187FD 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.

Coastal Morning Lead · 5 colors

Lead #2187FD 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.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #2187FD Secondary #98B7E1 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.

Sunset Warmth Glow · 5 colors

Glow #2187FD Secondary #E76A77 Accent #F79153 Anchor #573B59 Surface #EEEBD6

Signal 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 #2187FD 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 5/100

Cool

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

Softness 40/100

Low

Middle-weight — neither delicate nor heavy.

Depth 39/100

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 23/100

Low

Clean and current — no dusty, aged cast.

Luxury 40/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 76/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 73/100

High

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

Surface fit 20/100

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 #2187FD

For UI

For branding

For interior

For fashion

People also use #2187FD with

Cyan Ultramarine Butterscotch 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 5.3:1. Use

Subtle surface Use #D9E8F8 for cards and hover fills. Tint 80

Avoid beside #213EFD — 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 #2187FD 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: #2187FD;
  --color-base-rgb: 33 135 253;
  --color-base-oklch: oklch(63.2% 0.197 255.8);
  --color-50: #F0F7FE;
  --color-100: #D8E9FD;
  --color-200: #B1D4FC;
  --color-300: #78B3F7;
  --color-400: #4894EA;
  --color-500: #2475D1;
  --color-600: #245D9E;
  --color-700: #20456F;
  --color-800: #192F48;
  --color-900: #111E2C;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  signal-blue: {
    50: '#F0F7FE',
    100: '#D8E9FD',
    200: '#B1D4FC',
    300: '#78B3F7',
    400: '#4894EA',
    500: '#2475D1',
    600: '#245D9E',
    700: '#20456F',
    800: '#192F48',
    900: '#111E2C',
  },
}

$base: #2187FD;
$base-ink: #141310;
$base-50: #F0F7FE;
$base-100: #D8E9FD;
$base-200: #B1D4FC;
$base-300: #78B3F7;
$base-400: #4894EA;
$base-500: #2475D1;
$base-600: #245D9E;
$base-700: #20456F;
$base-800: #192F48;
$base-900: #111E2C;
$base-hover: #026BE2;
$base-subtle: #C4DCF6;

{
    "color": {
        "base": {
            "value": "#2187FD",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F7FE",
                "type": "color"
            },
            "100": {
                "value": "#D8E9FD",
                "type": "color"
            },
            "200": {
                "value": "#B1D4FC",
                "type": "color"
            },
            "300": {
                "value": "#78B3F7",
                "type": "color"
            },
            "400": {
                "value": "#4894EA",
                "type": "color"
            },
            "500": {
                "value": "#2475D1",
                "type": "color"
            },
            "600": {
                "value": "#245D9E",
                "type": "color"
            },
            "700": {
                "value": "#20456F",
                "type": "color"
            },
            "800": {
                "value": "#192F48",
                "type": "color"
            },
            "900": {
                "value": "#111E2C",
                "type": "color"
            }
        }
    }
}