CeruleanBlue
#2A52BE · rgb(42, 82, 190) · hsl(224, 64%, 45%)
Complementary colors
#2950bc · #bc9529Analogous colors
#299abc · #2950bc · #4c29bcTriadic colors
#2950bc · #bc2950 · #50bc29Split-complementary colors
#2950bc · #bc4c29 · #9abc29Tetradic colors
#2950bc · #bc299a · #bc9529 · #29bc4cMonochromatic colors
#0e1b3f · #1d3986 · #2e59d1 · #7995e2 · #c0cdf1Ready-made palettes with CeruleanBlue
Complementary palette
The base color paired with its opposite on the wheel for maximum contrast, plus two neutrals and a soft tint.
#2A52BE · #bc9529 · #899fdc · #f4f4f5 · #18181b
Analogous palette
Neighboring hues on the color wheel create a calm, cohesive scheme with a light tint and a deep shade.
#299abc · #2A52BE · #4c29bc · #899fdc · #122454
Triadic palette
Three hues spaced evenly around the wheel for a bold, balanced palette anchored by two neutrals.
#2A52BE · #bc2950 · #50bc29 · #f4f4f5 · #18181b
Monochromatic palette
A single hue stepped from light to dark for a clean, elegant and foolproof palette.
#eef2fb · #92a9e7 · #325dd2 · #1b3479 · #060b19
If you are wondering what colors go with CeruleanBlue, start with its opposite on the wheel — a complementary #bc9529 — then soften the pairing with the analogous, triadic and monochromatic schemes above.
Frequently asked questions
CeruleanBlue's complementary color is #bc9529. Analogous neighbors, triadic accents and monochromatic tints of the same hue all pair naturally with it too.
Good to know facts
- Every swatch row is a complete scheme you can copy straight into CSS.
- The color wheel can regenerate these harmonies for any base you like.
Related tools
These color tools pair naturally with the one you just used — keep exploring.
From the blog
Guides that go deeper into what this tool does.

Rainbow Color Codes: Hex and RGB for Every Shade of the Spectrum
The real hex and RGB codes for all 7 ROYGBIV rainbow colors, why there's no single "official" rainbow, and CSS code to build your own rainbow gradient.

The 60-30-10 Rule: A Simple Formula for Color in Design
The 60-30-10 color rule explained — how to split any palette into a dominant, secondary, and accent color, with real hex codes and CSS for web design.

Tint vs. Shade vs. Tone: What's the Actual Difference?
Tint (+white), shade (+black), and tone (+gray) explained clearly — with a real hex example, CSS code, and where each one actually belongs in design.