Color
#37ae99
#37ae99rgb(55, 174, 153)hsl(169, 52%, 45%)oklch(0.68 0.109 178.6)Colors that go with #37ae99
Charcoal, Hot Pink and Dodger 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 #37ae99: softer than #000 and cool enough to feel like part of the same palette.
Hot Pink #ff69b4
complementaryshippedHot Pink sits directly opposite #37ae99 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #37ae99: 4 real palettes, including Unity's brand system and Spline's brand system, as the lead colour.
Midnight Blue #191970
shipped8 real palettes, including Fintech Trust and Ford's brand system put Midnight Blue beside #37ae99, as the text colour against it.
Mustard Yellow #ffdb58
shipped4 real palettes, including Diner and Lido put Mustard Yellow beside #37ae99, as the accent.
Royal Blue #4169e1
shippedRoyal Blue is paired with #37ae99 in 7 real palettes, including Khan Academy's brand system and Brilliant's brand system, as the accent.
Slate Gray #708090
shipped4 real palettes, including Indigo SaaS and Ledger Dark put Slate Gray beside #37ae99, as the supporting colour.
Taupe #483c32
shippedTaupe is paired with #37ae99 in 18 real palettes, including Resort and Undergrowth, as the text colour against it.
Real palettes that use #37ae99
Tints & shades
Harmonies
Contrast
| #37ae99 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.74:1 | fail | fail | fail | |
Aaon black | 7.68:1 | 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 #37ae99 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 #37ae99 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/37ae99-a2bebc-d459ab-1f2a2d-e9f1ec?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