Color
#40b0ac
#40b0acrgb(64, 176, 172)hsl(178, 47%, 47%)oklch(0.694 0.1 191.7)Colors that go with #40b0ac
Charcoal, Dark Olive Green and Denim 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 #40b0ac: softer than #000 and cool enough to feel like part of the same palette.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #40b0ac in 4 real palettes, including Undergrowth and Forest Floor, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #40b0ac: 5 real palettes, including Open House and Peacock, as the lead colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #40b0ac: 5 real palettes, including Unity's brand system and Patreon's brand system, as the lead colour.
Midnight Blue #191970
shipped7 real palettes, including Ford's brand system and Confluent's brand system put Midnight Blue beside #40b0ac, as the lead colour.
Mustard Yellow #ffdb58
shipped4 real palettes, including Lido and Diner put Mustard Yellow beside #40b0ac, as the accent.
Orange Red #ff4500
shippedOrange Red is paired with #40b0ac in 4 real palettes, including Cursor's brand system and Launch Orange, as the lead colour.
Tomato #ff6347
split-complementshippedTomato is a split-complement of #40b0ac: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Real palettes that use #40b0ac
Tints & shades
Harmonies
Contrast
| #40b0ac as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.62:1 | fail | fail | fail | |
Aaon black | 8.02:1 | 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 #40b0ac 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 #40b0ac and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/40b0ac-a2bcbe-d45999-1f282d-e9f1ed?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