Color
#18bf9d
#18bf9drgb(24, 191, 157)hsl(168, 78%, 42%)oklch(0.719 0.134 173.4)Colors that go with #18bf9d
Charcoal, Hot Pink 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 #18bf9d: softer than #000 and cool enough to feel like part of the same palette.
Hot Pink #ff69b4
complementaryshippedHot Pink sits directly opposite #18bf9d on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Midnight Blue #191970
shipped5 real palettes, including Fintech Trust and Ford's brand system put Midnight Blue beside #18bf9d, as the text colour against it.
Mustard Yellow #ffdb58
shipped6 real palettes, including Fresh Juice and Crayon Box put Mustard Yellow beside #18bf9d, as the supporting colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #18bf9d in 6 real palettes, including Khan Academy's brand system and Docker's brand system, as the accent.
Taupe #483c32
shippedTaupe is paired with #18bf9d in 14 real palettes, including Chime's brand system and Crayon Box, as the lead colour.
Burlywood #deb887
shippedBurlywood is paired with #18bf9d in 3 real palettes, including Polaroid and Coastal, as the accent.
Cornflower Blue #6495ed
triadicshippedCornflower Blue completes a triad with #18bf9d — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Real palettes that use #18bf9d
Tints & shades
Harmonies
Contrast
| #18bf9d as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.34:1 | fail | fail | fail | |
Aaon black | 8.98:1 | 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 #18bf9d 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 #18bf9d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/18bf9d-a2bebc-d459ad-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