Is Royal Blue (#4169E1) accessible for digital body text?

Against a pure white background (#FFFFFF), #4169E1 achieves a contrast ratio of 4.85:1 (Passing WCAG AA normal text). Against a dark slate background (#0F172A), it achieves a contrast ratio of 3.68:1 (Failing WCAG AA normal text).

Which color harmonies pair best with Royal Blue?

The exact complementary color for #4169E1 is #E1B941. For analogous pairings, use #41B9E1 and #6941E1. You can explore these combinations further in our Color Harmony Generator.

Color Directory/Royal Blue

Royal Blue (#4169E1)

Q: What are the exact digital and print color codes for Royal Blue (#4169E1)?

Royal Blue has the HEX code #4169E1. In RGB color coordinates, its values are 65, 105, 225. In HSL, it is 225°, 73%, 57%. In CMYK print values, it corresponds to C:71% M:53% Y:0% K:12%.

Luminance: 17% · Nearest standard name: Royal Blue

Generate Around This Color

ROYAL BLUE

#4169E1

rgb(65, 105, 225) · hsl(225°, 73%, 57%)

HEX#4169E1

RGB65, 105, 225

HSL225°, 73%, 57%

HSV / HSB225°, 71%, 88%

CMYK (Print)71%, 53%, 0%, 12%

Color Harmonies

Complementary

#4169E1#E1B941

Analogous

#41B9E1#4169E1#6941E1

Triadic

#4169E1#E14169#69E141

Tints & Shades

Lighter Tints

Darker Shades

WCAG 2.2 Contrast Verification

Against White (#FFFFFF)4.85:1

Sample text rendered with #4169E1 on white

AA Normal: PASSAA Large: PASS

Against Dark (#0F172A)3.68:1

Sample text rendered with #4169E1 on dark

AA Normal: FAILAA Large: PASS

Palettes Featuring Similar Tones

cp-featured-01Technology

TechModernCool

cp-featured-02Sunset

SunsetGradientCreative

cp-featured-03Vintage

VintageRetroWarm

cp-featured-04Gaming

Cyber Glitch Protocol

GamingFuturisticNeon

Comprehensive Color Profile & Design Architecture

The Complete Color Guide to Royal Blue (#4169E1)

Royal Blue (#4169E1) is a distinct shade within the Blue chromatic spectrum. Characterized by an optical luminance of 17% and a cool color temperature, this tone plays a vital role across web applications, brand identities, and editorial typography. Discover its mathematical harmonies, accessibility metrics, UI engineering roles, and front-end code tokens.

Technical Colorimetry & Coordinate Breakdown

Exact mathematical values across digital display, print press, and human perceptual spaces.

HEX Code#4169E1

RGB Space65, 105, 225

HSL Values225°, 73%, 57%

HSV / HSB225°, 71%, 88%

CMYK Ink71%, 53%, 0%, 12%

TemperatureCool

Optical Color Harmony Formulas for Royal Blue

Geometric intervals calculated from #4169E1 on the 360-degree color wheel.

Direct Polar (180°)#E1B941

Complementary Harmony

Pairs Royal Blue with its polar opposite (#E1B941) to create maximum optical contrast, perfect for high-converting call-to-action buttons.

Adjacent (±30°)#41B9E1 · #6941E1

Analogous Harmony

Positions adjacent neighboring hues on either side of Royal Blue for serene, gentle, and organic visual transitions.

Split Angles (150° / 210°)#E16941 · #B9E141

Split-Complementary

Uses the two colors flanking the direct complement of Royal Blue, offering rich visual variety without harsh chromatic vibration.

Triangular (120°)#E14169 · #69E141

Triadic Harmony

Forms an equilateral triangle on the color wheel, generating playful, dynamic energy when balanced against a neutral background.

Rectangular (90°)#E141B9 · #E1B941 · #41E169

Tetradic (Square) Harmony

A rich four-color scheme combining two complementary pairs, ideal for complex dashboards, gaming HUDs, and multi-tier charts.

Interactive Exploration

Build Palettes With Royal Blue

Lock #4169E1 inside our interactive generator to calculate live matching palettes in real time.

Launch Palette Generator

The 60-30-10 UI Implementation Role for Royal Blue

Recommended proportional volume and semantic interface assignment.

Recommended Assignment: Interactive Brand Accent (10% Volume)

With a saturation of 73% and lightness of 57%, Royal Blue (#4169E1) acts as an attention-grabbing focal point. In user interfaces, reserve it for primary CTA buttons, active state indicators, and notification badges to draw user clicks immediately.

Light Mode SurfaceIdeal for buttons and badges

Dark Mode AdaptationDesaturate slightly for ambient glow

Tonal Expansion ScaleView 10-step design token ramp →

Color Psychology & Industry Alignment

Strategic cognitive triggers and target sector recommendations.

Cognitive & Emotional Perception

This color projects authority, intelligence, and calm dependability. Universally trusted across enterprise software and fintech products.

Optimal Industry Verticals

Fintech, Enterprise SaaS, Healthcare, Cloud Infrastructure. Combining Royal Blue with intentional neutral whitespace reinforces authority and conversion clarity.

Production Code Tokens for Royal Blue

Drop-in design system tokens for CSS, Tailwind CSS, and SCSS.

CSS Custom Properties (:root)Vanilla CSS

:root {
  --color-4169e1: #4169E1;
  --color-4169e1-rgb: 65, 105, 225;
  --color-4169e1-hsl: 225deg 73% 57%;
}

tailwind.config.jsTailwind CSS

module.exports = {
  theme: {
    extend: {
      colors: {
        '4169e1': '#4169E1',
      }
    }
  }
};

Explore Related Color Tools for Royal Blue

Continue developing your color system with specialized design tools.

Palette Generator

Generate harmonious 5-color palettes anchored to Royal Blue.

Launch Tool

WCAG Contrast Checker

Verify Level AA and AAA readability for Royal Blue against any background.

Check Contrast

Shades & Tints Scale

Generate a full 10-step tonal scale from 50 to 900 for Royal Blue.

Expand Scale

CSS Gradient Generator

Create linear and radial gradients blending Royal Blue with complementary hues.

Build Gradients

Frequently Asked Questions About Royal Blue (#4169E1)

Authoritative answers covering Royal Blue color codes, WCAG contrast compliance, and UI design systems.

What are the exact digital and print color codes for Royal Blue (#4169E1)?

Royal Blue is defined by the HEX code #4169E1. Its digital screen RGB coordinates are R:65, G:105, B:225. Its cylindrical HSL values are Hue:225°, Saturation:73%, Lightness:57%. In HSV/HSB format, it is 225°, 71%, 88%. For four-color CMYK process printing, its ink percentages are C:71%, M:53%, Y:0%, K:12%.

Does Royal Blue (#4169E1) pass WCAG 2.2 accessibility standards for text readability?

Against a pure white (#FFFFFF) background, Royal Blue achieves a contrast ratio of 4.85:1 (Passing WCAG AA for normal body text, and Passing for large headings). Against dark slate (#0F172A), it achieves a contrast ratio of 3.68:1 (Failing WCAG AA).

What is the direct complementary color for Royal Blue (#4169E1)?

The exact 180-degree optical complementary color for #4169E1 is #E1B941. When placed side-by-side, #4169E1 and #E1B941 create maximum visual tension and high click-through conversion rates.

What is the recommended role for Royal Blue in the 60-30-10 UI design rule?

How can I copy and export Royal Blue into Tailwind CSS and CSS variables?

You can define Royal Blue in CSS custom properties as ':root { --color-custom: #4169E1; }' or paste it into your 'tailwind.config.js' file under 'theme.extend.colors'. You can also generate full palettes containing Royal Blue using our interactive Color Palette Generator.

Which color family does Royal Blue (#4169E1) belong to?

Royal Blue belongs to the Blue family (Cool spectrum). You can explore full tonal ramps and curated palettes in our Blue Color Guide.