Color
#4066bf
#4066bfrgb(64, 102, 191)hsl(222, 50%, 50%)oklch(0.529 0.146 264.5)Colors that go with #4066bf
Charcoal, Sea Green and Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #4066bf: softer than #000 and cool enough to feel like part of the same palette.
Sea Green #2e8b57
triadicshippedSea Green completes a triad with #4066bf — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Blue #0000ff
shippedBlue is paired with #4066bf in 5 real palettes, including Headspace's brand system and MongoDB's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #4066bf in 5 real palettes, including Netflix's brand system and Chase's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #4066bf in 4 real palettes, including Fintech Trust and Console Light, as the accent — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #4066bf in 6 real palettes, including Fintech Trust and Telehealth, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Orange Red #ff4500
shippedOrange Red is paired with #4066bf in 5 real palettes, including PlanetScale's brand system and Strava's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Slate Gray #708090
shippedSlate Gray is paired with #4066bf in 6 real palettes, including Slate Workspace and Campus, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #4066bf
Tints & shades
Harmonies
Contrast
| #4066bf as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.43:1 | pass | pass | fail |
|
Aaon black | 3.87:1 | fail | pass | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4066bf as the background.
Brands using this color
Fonts for this mood
#4066bf reads as cool, modern. The font library is tagged with the same vocabulary:
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #4066bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/4066bf-9ca3c4-df6e4e-211f2d-e9eff1?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md