BlueGray
#6699CC · rgb(102, 153, 204) · hsl(210, 50%, 60%)
Complementary colors
#6699cc · #cc9966Analogous colors
#66cccc · #6699cc · #6666ccTriadic colors
#6699cc · #cc6699 · #99cc66Split-complementary colors
#6699cc · #cc6666 · #cccc66Tetradic colors
#6699cc · #cc66cc · #cc9966 · #66cc66Monochromatic colors
#132639 · #29527a · #4080bf · #85add6 · #c6d9ecReady-made palettes with BlueGray
Complementary palette
The base color paired with its opposite on the wheel for maximum contrast, plus two neutrals and a soft tint.
#6699CC · #cc9966 · #c9d9e8 · #f4f4f5 · #18181b
Analogous palette
Neighboring hues on the color wheel create a calm, cohesive scheme with a light tint and a deep shade.
#66cccc · #6699CC · #6666cc · #c9d9e8 · #2d5986
Triadic palette
Three hues spaced evenly around the wheel for a bold, balanced palette anchored by two neutrals.
#6699CC · #cc6699 · #99cc66 · #f4f4f5 · #18181b
Monochromatic palette
A single hue stepped from light to dark for a clean, elegant and foolproof palette.
#f0f5fa · #9cbdde · #4482c1 · #254a6f · #080f17
If you are wondering what colors go with BlueGray, start with its opposite on the wheel — a complementary #cc9966 — then soften the pairing with the analogous, triadic and monochromatic schemes above.
Frequently asked questions
BlueGray's complementary color is #cc9966. 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.