Color
#40bab2
#40bab2rgb(64, 186, 178)hsl(176, 49%, 49%)oklch(0.72 0.107 188.8)Colors that go with #40bab2
Charcoal, Denim and Midnight 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 #40bab2: softer than #000 and cool enough to feel like part of the same palette.
Denim #1560bd
shippedDenim is paired with #40bab2 in 4 real palettes, including Open House and Coca-Cola's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #40bab2 in 6 real palettes, including Confluent's brand system and Ford's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Mustard Yellow #ffdb58
shippedMustard Yellow is paired with #40bab2 in 4 real palettes, including Crayon Box and Lido, as the accent — a combination designers have actually shipped, not a computed rotation.
Royal Blue #4169e1
shippedRoyal Blue is paired with #40bab2 in 5 real palettes, including Khan Academy's brand system and Brilliant's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Slate Gray #708090
shippedSlate Gray is paired with #40bab2 in 5 real palettes, including Indigo SaaS and Ledger Dark, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Steel Blue #4682b4
shippedSteel Blue is paired with #40bab2 in 4 real palettes, including Deep Water and Ford's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Light Coral #f08080
complementaryLight Coral sits directly opposite #40bab2 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Real palettes that use #40bab2
Tints & shades
Harmonies
Contrast
| #40bab2 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.36:1 | fail | fail | fail | |
Aaon black | 8.88:1 | 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 #40bab2 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 #40bab2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/40bab2-a2bdbe-d4599d-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