What color is #4169E1?

Royal Blue (#4169E1) is a medium, vivid blue. In RGB it is rgb(65, 105, 225), and in HSL hsl(225, 73%, 57%).

Is #4169E1 accessible as text?

On white, #4169E1 has a contrast ratio of 4.85:1 (passes WCAG AA for body text); on black it is 4.33:1 (fails). For text placed on #4169E1, use white for the best readability.

What is the closest Tailwind color to #4169E1?

The nearest Tailwind CSS token is blue-600 (#155DFC).

What colors go well with #4169E1?

#4169E1 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #E1B941. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #4169E1 below.

Is Royal Blue good for buttons?

Royal Blue works well for buttons and highlights, but use white text on #4169E1 — black text only reaches 4.33:1, below the 4.5:1 needed for normal-size labels.

Is Royal Blue the same as CSS royalblue?

Yes — #4169E1 is the CSS named color royalblue.

Royal Blue (#4169E1) Color Palette, HEX, RGB & Design Ideas

Palettes built on Royal Blue

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

Tech Product Signal · 5 colors

Signal #4169E1 Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #6891FF

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 #4169E1 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.

Berry & Cream Lead · 5 colors

Lead #4169E1 Surface #F6E5D8 Anchor #5B2144 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 #4169E1 Secondary #8B9EC8 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 #4169E1 Secondary #E86A74 Accent #F79251 Anchor #573B58 Surface #F7E7D7

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 Royal Blue 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 37/100

Low

Middle-weight — neither delicate nor heavy.

Depth 47/100

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 29/100

Low

A faint retro warmth without tipping into sepia.

Luxury 47/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 73/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 90/100

Very high

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

Surface fit 13/100

Very low

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

Print safety 66/100

High

Prints close, with a slight loss of vibrancy.

Pairs with Royal Blue

For UI

For branding

For interior

For fashion

People also use Royal Blue with

Sky Blue Blue Violet Honey 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 4.8:1. Use

Subtle surface Use #DEE3F5 for cards and hover fills. Tint 80

Avoid beside #4F41E1 — 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 Royal Blue 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: #4169E1;
  --color-base-rgb: 65 105 225;
  --color-base-oklch: oklch(56.0% 0.188 266.4);
  --color-50: #F1F4FD;
  --color-100: #DBE3FA;
  --color-200: #B9C7F4;
  --color-300: #88A0E7;
  --color-400: #5D7BD5;
  --color-500: #3A5ABB;
  --color-600: #334A8E;
  --color-700: #2A3965;
  --color-800: #1F2842;
  --color-900: #151A28;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  royal-blue: {
    50: '#F1F4FD',
    100: '#DBE3FA',
    200: '#B9C7F4',
    300: '#88A0E7',
    400: '#5D7BD5',
    500: '#3A5ABB',
    600: '#334A8E',
    700: '#2A3965',
    800: '#1F2842',
    900: '#151A28',
  },
}

$base: #4169E1;
$base-ink: #FFFFFF;
$base-50: #F1F4FD;
$base-100: #DBE3FA;
$base-200: #B9C7F4;
$base-300: #88A0E7;
$base-400: #5D7BD5;
$base-500: #3A5ABB;
$base-600: #334A8E;
$base-700: #2A3965;
$base-800: #1F2842;
$base-900: #151A28;
$base-hover: #1F4AC9;
$base-subtle: #CCD5F0;

{
    "color": {
        "base": {
            "value": "#4169E1",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F4FD",
                "type": "color"
            },
            "100": {
                "value": "#DBE3FA",
                "type": "color"
            },
            "200": {
                "value": "#B9C7F4",
                "type": "color"
            },
            "300": {
                "value": "#88A0E7",
                "type": "color"
            },
            "400": {
                "value": "#5D7BD5",
                "type": "color"
            },
            "500": {
                "value": "#3A5ABB",
                "type": "color"
            },
            "600": {
                "value": "#334A8E",
                "type": "color"
            },
            "700": {
                "value": "#2A3965",
                "type": "color"
            },
            "800": {
                "value": "#1F2842",
                "type": "color"
            },
            "900": {
                "value": "#151A28",
                "type": "color"
            }
        }
    }
}