Royal Blue
Also known as: Bluetiful, The Rainbow Fish, Han Blue, Secret of Mana
Quietly calm and trustworthy, Royal Blue is a cool-toned blue that earns its keep in finance apps and trust-driven interfaces. Set it against a brown accent when you want the combination to pop. Accessibility-wise, it clears AA for text on white at 4.85:1.
Royal Blue color codes
- HEX
- #4169E1
- RGB
- rgb(65, 105, 225)
- RGBA
- rgba(65, 105, 225, 1)
- HSL
- hsl(225, 73%, 57%)
- HSV
- hsv(225, 71%, 88%)
- CMYK
- cmyk(71%, 53%, 0%, 12%)
- LAB
- lab(46.8 17.8 -66.7)
- OKLCH
- oklch(56.0% 0.188 266.4)
Color intelligence
Displays accurately on every screen and translates well to print.
Temperature
cool
Nearest standard colors
- CSS: royalblue#4169E1 · ΔE 0.0
- RAL 5007 — Brilliant blue#41678D · ΔE 9.4 · approximate
RAL values are widely published approximations of the physical standard. For Pantone-adjacent workflows, match by eye against a physical fan deck — Pantone's values are proprietary and device-dependent, so we don't print lookups.
Where Royal Blue works
- Web & UI: Use it directly for text on light surfaces; it clears AA contrast without adjustment.
- Interiors: Use it where you want the eye to land — front door, built-ins, or one bold wall.
- Fashion: One garment in this color carries an outfit; two starts to compete.
- Branding: The safest brand-primary family there is; differentiate with an unexpected accent.
- Web & UI: Reads as an interactive accent: fills, hovers, focus rings. Keep body text in a darker neutral.
- Branding: Best in a brand's supporting palette — packaging interiors, patterns, campaign accents.
Copy as — every ecosystem
Tints, shades, and tones of Royal Blue
Tints (lighter)
Shades (darker)
Color harmonies
Palettes built from Royal Blue by rotating its hue in OKLCH space. Click any swatch to copy its hex code.
Complementary
Analogous
Triadic
Split-complementary
Tetradic
Monochromatic
Contrast & accessibility
Aa — on white
contrast 4.85:1
AA passAAA failAA large pass
Aa — on black
contrast 4.33:1
AA failAAA failAA large pass
Best text color on a Royal Blue background: #ffffff
Palettes featuring Royal Blue
Royal Blue with its complement
Soft neighbors of Royal Blue
Royal Blue triad
Similar colors
- Bluetiful#3C69E7 · ΔE 0.7
- Epic Blue#0066EE · ΔE 3.1
- Bluerocratic#1F66FF · ΔE 3.4
- Blue Ribbon#0066FF · ΔE 3.5
- Savoy Blue#4B61D1 · ΔE 3.7
- Arcane Brew#5260E1 · ΔE 4.2
Looking for maximum contrast instead? The complement of Royal Blue is closest to Puma.
Royal Blue FAQs
What color is Royal Blue?
Royal Blue is a medium blue with the hex code #4169E1. In HSL terms it has a hue of 225°, 73% saturation, and 57% lightness.
What is the hex code for Royal Blue?
The hex code for Royal Blue is #4169E1. In RGB it's rgb(65, 105, 225), and in CMYK it's cmyk(71%, 53%, 0%, 12%).
What colors go well with Royal Blue?
Royal Blue pairs naturally with brown tones from its complementary harmony. Its own tints and shades always work as a monochrome scheme.
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