What color is #3F85FD?

#3F85FD is a light, vivid blue. In RGB it is rgb(63, 133, 253), and in HSL hsl(218, 98%, 62%).

Is #3F85FD accessible as text?

On white, #3F85FD has a contrast ratio of 3.51:1 (fails WCAG AA for body text); on black it is 5.98:1 (passes). For text placed on #3F85FD, use black for the best readability.

What is the closest Tailwind color to #3F85FD?

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

What colors go well with #3F85FD?

#3F85FD pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #FDB73F. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3F85FD below.

Is #3F85FD good for buttons?

#3F85FD works well for buttons and highlights, but use black text on #3F85FD — white text only reaches 3.51:1, below the 4.5:1 needed for normal-size labels.

Is #3F85FD the same as CSS dodgerblue?

No — #3F85FD is not the CSS named color dodgerblue, but dodgerblue (#1E90FF) is the closest CSS named color.

#3F85FD Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3F85FD

Not just a swatch — here's how #3F85FD works with other colors. Named schemes with #3F85FD in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #3F85FD Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #6DADFF

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 #3F85FD 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 #3F85FD Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

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 #3F85FD Secondary #9DB7E2 Support #9D8F88 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 #3F85FD Secondary #E76A76 Accent #F79152 Anchor #573B58 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 #3F85FD 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 7/100

Cool

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

Softness 41/100

Moderate

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 24/100

Low

Clean and current — no dusty, aged cast.

Luxury 40/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 74/100

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 20/100

Low

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

Print safety 63/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #3F85FD

For UI

For branding

For interior

For fashion

People also use #3F85FD with

Electric Blue Han Purple Fawn 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 #DEE8F9 for cards and hover fills. Tint 80

Avoid beside #3F45FD — 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 #3F85FD at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

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: #3F85FD;
  --color-base-rgb: 63 133 253;
  --color-base-oklch: oklch(63.5% 0.192 260.4);
  --color-50: #F0F5FE;
  --color-100: #D8E6FD;
  --color-200: #B1CCFC;
  --color-300: #78A7F7;
  --color-400: #4883EA;
  --color-500: #2463D1;
  --color-600: #24519E;
  --color-700: #203D6F;
  --color-800: #192A48;
  --color-900: #111B2C;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  signal-blue: {
    50: '#F0F5FE',
    100: '#D8E6FD',
    200: '#B1CCFC',
    300: '#78A7F7',
    400: '#4883EA',
    500: '#2463D1',
    600: '#24519E',
    700: '#203D6F',
    800: '#192A48',
    900: '#111B2C',
  },
}

$base: #3F85FD;
$base-ink: #141310;
$base-50: #F0F5FE;
$base-100: #D8E6FD;
$base-200: #B1CCFC;
$base-300: #78A7F7;
$base-400: #4883EA;
$base-500: #2463D1;
$base-600: #24519E;
$base-700: #203D6F;
$base-800: #192A48;
$base-900: #111B2C;
$base-hover: #035DFA;
$base-subtle: #CCDCF8;

{
    "color": {
        "base": {
            "value": "#3F85FD",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F5FE",
                "type": "color"
            },
            "100": {
                "value": "#D8E6FD",
                "type": "color"
            },
            "200": {
                "value": "#B1CCFC",
                "type": "color"
            },
            "300": {
                "value": "#78A7F7",
                "type": "color"
            },
            "400": {
                "value": "#4883EA",
                "type": "color"
            },
            "500": {
                "value": "#2463D1",
                "type": "color"
            },
            "600": {
                "value": "#24519E",
                "type": "color"
            },
            "700": {
                "value": "#203D6F",
                "type": "color"
            },
            "800": {
                "value": "#192A48",
                "type": "color"
            },
            "900": {
                "value": "#111B2C",
                "type": "color"
            }
        }
    }
}

Palettes built on #3F85FD

Color Lab

Pairs with #3F85FD

UI roles & guardrails

In real applications

Scales

Every model

Export