What color is #3D74EB?

#3D74EB is a medium, vivid blue. In RGB it is rgb(61, 116, 235), and in HSL hsl(221, 81%, 58%).

Is #3D74EB accessible as text?

On white, #3D74EB has a contrast ratio of 4.29:1 (fails WCAG AA for body text); on black it is 4.90:1 (passes). For text placed on #3D74EB, use black for the best readability.

What is the closest Tailwind color to #3D74EB?

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

What colors go well with #3D74EB?

#3D74EB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #EBB43D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3D74EB below.

Is #3D74EB good for buttons?

#3D74EB works well for buttons and highlights, but use black text on #3D74EB — white text only reaches 4.29:1, below the 4.5:1 needed for normal-size labels.

Is #3D74EB the same as CSS royalblue?

No — #3D74EB is not the CSS named color royalblue, but royalblue (#4169E1) is the closest CSS named color.

#3D74EB Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3D74EB

Not just a swatch — here's how #3D74EB works with other colors. Named schemes with #3D74EB in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #3D74EB Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #679CFF

Royal 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 Royal Blue.

Coastal Morning Lead · 5 colors

Lead #3D74EB Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

Royal 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 #3D74EB Surface #F6E5D8 Anchor #5B2144 Accent #E4C2CA Secondary #322B2F

Royal 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 #3D74EB Secondary #91A7D1 Support #9D8F88 Ink #18140F

Royal 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 Royal Blue carrying the quiet middle.

Sunset Warmth Glow · 5 colors

Glow #3D74EB Secondary #E76A75 Accent #F79151 Anchor #573B58 Surface #EEEBD6

Royal 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 #3D74EB 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 38/100

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 27/100

Low

A faint retro warmth without tipping into sepia.

Luxury 44/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 73/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 86/100

Very 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 65/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #3D74EB

For UI

For branding

For interior

For fashion

People also use #3D74EB with

Bright Sky Iris 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 4.3:1. Use

Subtle surface Use #DDE5F6 for cards and hover fills. Tint 80

Avoid beside #403DEB — 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 #3D74EB 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: #3D74EB;
  --color-base-rgb: 61 116 235;
  --color-base-oklch: oklch(58.7% 0.189 263.2);
  --color-50: #F1F5FE;
  --color-100: #D9E4FC;
  --color-200: #B5CAF7;
  --color-300: #83A4EC;
  --color-400: #5680DC;
  --color-500: #3360C2;
  --color-600: #2E4E93;
  --color-700: #273B68;
  --color-800: #1D2944;
  --color-900: #141B2A;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  royal-blue: {
    50: '#F1F5FE',
    100: '#D9E4FC',
    200: '#B5CAF7',
    300: '#83A4EC',
    400: '#5680DC',
    500: '#3360C2',
    600: '#2E4E93',
    700: '#273B68',
    800: '#1D2944',
    900: '#141B2A',
  },
}

$base: #3D74EB;
$base-ink: #141310;
$base-50: #F1F5FE;
$base-100: #D9E4FC;
$base-200: #B5CAF7;
$base-300: #83A4EC;
$base-400: #5680DC;
$base-500: #3360C2;
$base-600: #2E4E93;
$base-700: #273B68;
$base-800: #1D2944;
$base-900: #141B2A;
$base-hover: #1653D6;
$base-subtle: #CBD8F3;

{
    "color": {
        "base": {
            "value": "#3D74EB",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F5FE",
                "type": "color"
            },
            "100": {
                "value": "#D9E4FC",
                "type": "color"
            },
            "200": {
                "value": "#B5CAF7",
                "type": "color"
            },
            "300": {
                "value": "#83A4EC",
                "type": "color"
            },
            "400": {
                "value": "#5680DC",
                "type": "color"
            },
            "500": {
                "value": "#3360C2",
                "type": "color"
            },
            "600": {
                "value": "#2E4E93",
                "type": "color"
            },
            "700": {
                "value": "#273B68",
                "type": "color"
            },
            "800": {
                "value": "#1D2944",
                "type": "color"
            },
            "900": {
                "value": "#141B2A",
                "type": "color"
            }
        }
    }
}