What color is #3E5FCD?

#3E5FCD is a medium blue. In RGB it is rgb(62, 95, 205), and in HSL hsl(226, 59%, 52%).

Is #3E5FCD accessible as text?

On white, #3E5FCD has a contrast ratio of 5.64:1 (passes WCAG AA for body text); on black it is 3.72:1 (fails). For text placed on #3E5FCD, use white for the best readability.

What is the closest Tailwind color to #3E5FCD?

The nearest Tailwind CSS token is sky-700 (#0069A8).

What colors go well with #3E5FCD?

#3E5FCD pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #CDAB3C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3E5FCD below.

Is #3E5FCD good for buttons?

#3E5FCD works well for buttons and highlights, but use white text on #3E5FCD — black text only reaches 3.72:1, below the 4.5:1 needed for normal-size labels.

Is #3E5FCD the same as CSS royalblue?

No — #3E5FCD is not the CSS named color royalblue, but royalblue (#4169E1) is the closest CSS named color.

#3E5FCD Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3E5FCD

Not just a swatch — here's how #3E5FCD works with other colors. Named schemes with #3E5FCD in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #3E5FCD Accent #A5C4C2 Surface #EAD5C0 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.

Tech Product Signal · 5 colors

Signal #3E5FCD Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #6387EC

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.

Vintage Leather Lead · 5 colors

Lead #3E5FCD Secondary #7F4535 Surface #EED7C2 Accent #365246 Anchor #58223A

Royal 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 #3E5FCD Surface #F6E5D8 Anchor #5B2143 Accent #E5C2CA 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 #3E5FCD Secondary #8393BA 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.

Build a working theme in the generator →

Color Lab

How #3E5FCD 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 10/100

Cool

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

Softness 36/100

Low

Middle-weight — neither delicate nor heavy.

Depth 50/100

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 51/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 47/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 95/100

Very high

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

Surface fit 10/100

Very low

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

Print safety 69/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #3E5FCD

For UI

For branding

For interior

For fashion

People also use #3E5FCD with

Lagoon Blue Slate Blue Goldenrod Gainsboro Charcoal

UI roles & guardrails

Primary action Safe as a filled button with white label. AA

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 5.6:1. Use

Subtle surface Use #DCE1F1 for cards and hover fills. Tint 80

Avoid beside #4B3CCD — 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 #3E5FCD 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: #3E5FCD;
  --color-base-rgb: 62 95 205;
  --color-base-oklch: oklch(52.4% 0.175 267.4);
  --color-50: #F2F5FC;
  --color-100: #DEE4F7;
  --color-200: #BEC9EE;
  --color-300: #92A3DE;
  --color-400: #687FCA;
  --color-500: #465FAE;
  --color-600: #3C4D86;
  --color-700: #303B5F;
  --color-800: #22293F;
  --color-900: #171A27;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  royal-blue: {
    50: '#F2F5FC',
    100: '#DEE4F7',
    200: '#BEC9EE',
    300: '#92A3DE',
    400: '#687FCA',
    500: '#465FAE',
    600: '#3C4D86',
    700: '#303B5F',
    800: '#22293F',
    900: '#171A27',
  },
}

$base: #3E5FCD;
$base-ink: #FFFFFF;
$base-50: #F2F5FC;
$base-100: #DEE4F7;
$base-200: #BEC9EE;
$base-300: #92A3DE;
$base-400: #687FCA;
$base-500: #465FAE;
$base-600: #3C4D86;
$base-700: #303B5F;
$base-800: #22293F;
$base-900: #171A27;
$base-hover: #2B49A9;
$base-subtle: #CAD1EB;

{
    "color": {
        "base": {
            "value": "#3E5FCD",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F5FC",
                "type": "color"
            },
            "100": {
                "value": "#DEE4F7",
                "type": "color"
            },
            "200": {
                "value": "#BEC9EE",
                "type": "color"
            },
            "300": {
                "value": "#92A3DE",
                "type": "color"
            },
            "400": {
                "value": "#687FCA",
                "type": "color"
            },
            "500": {
                "value": "#465FAE",
                "type": "color"
            },
            "600": {
                "value": "#3C4D86",
                "type": "color"
            },
            "700": {
                "value": "#303B5F",
                "type": "color"
            },
            "800": {
                "value": "#22293F",
                "type": "color"
            },
            "900": {
                "value": "#171A27",
                "type": "color"
            }
        }
    }
}

Palettes built on #3E5FCD

Color Lab

Pairs with #3E5FCD

UI roles & guardrails

In real applications

Scales

Every model

Export