Color
#66b29a
#66b29argb(102, 178, 154)hsl(161, 33%, 55%)oklch(0.707 0.084 171.4)Colors that go with #66b29a
Charcoal, Blue and Burlywood 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 #66b29a: softer than #000 and cool enough to feel like part of the same palette.
Blue #0000ff
shipped4 real palettes, including Unity's brand system and Canva's brand system put Blue beside #66b29a, as the supporting colour.
Burlywood #deb887
shippedBurlywood is paired with #66b29a in 4 real palettes, including Polaroid and Chalkboard, as the accent.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #66b29a: 4 real palettes, including Canva's brand system and Arctic, as the supporting colour.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #66b29a in 4 real palettes, including Undergrowth and Forest Floor, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #66b29a: 4 real palettes, including Open House and Dusk, as the lead colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #66b29a: 4 real palettes, including Unity's brand system and Spline's brand system, as the lead colour.
Peru #cd853f
triadicshippedPeru completes a triad with #66b29a — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Real palettes that use #66b29a
Tints & shades
Harmonies
Contrast
| #66b29a as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.5:1 | fail | fail | fail | |
Aaon black | 8.4:1 | pass | pass | pass | Passes AAA — no fix needed. |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #66b29a as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
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 #66b29a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/66b29a-a2beb8-d459bb-1f2c2d-e9f1eb?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