Color
#669b5f
#669b5frgb(102, 155, 95)hsl(113, 24%, 49%)oklch(0.637 0.104 141.6)Colors that go with #669b5f
Charcoal, Blue and Copper 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 body-text near-black for #669b5f: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Blue #0000ff
shipped6 real palettes, including Unity's brand system and Kia's brand system put Blue beside #669b5f, as the supporting colour.
Copper #b87333
shippedDesigners have shipped Copper with #669b5f: 5 real palettes, including Clean Beauty and Wellness, as the accent.
Crimson #dc143c
shippedCrimson is paired with #669b5f in 5 real palettes, including DuckDuckGo's brand system and Diner, as the supporting colour.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #669b5f in 6 real palettes, including Undergrowth and Forest Floor, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #669b5f: 6 real palettes, including Peacock and Intel's brand system, as the supporting colour.
Hunter Green #355e3b
shippedHunter Green is paired with #669b5f in 5 real palettes, including Subaru's brand system and Rolex's brand system, as the lead colour.
Steel Blue #4682b4
triadicshippedSteel Blue completes a triad with #669b5f — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Real palettes that use #669b5f
Tints & shades
Harmonies
Contrast
| #669b5f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.27:1 | fail | pass | fail | |
Aaon black | 6.42:1 | pass | 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 #669b5f as the background.
Brands using this color
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 #669b5f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/669b5f-a2bea2-884edf-1f2d24-eef1e9?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