Color
#21d4bf
#21d4bfrgb(33, 212, 191)hsl(173, 73%, 48%)oklch(0.783 0.135 182.1)Colors that go with #21d4bf
Charcoal, Taupe and Light Coral 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 #21d4bf: softer than #000 and cool enough to feel like part of the same palette.
Taupe #483c32
shippedTaupe is paired with #21d4bf in 8 real palettes, including Crayon Box and Mint Chip, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Light Coral #f08080
complementaryLight Coral sits directly opposite #21d4bf on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Burlywood #deb887
shippedBurlywood is paired with #21d4bf in 3 real palettes, including Coastal and Polaroid, as the accent — a combination designers have actually shipped, not a computed rotation.
Slate Gray #708090
shippedSlate Gray is paired with #21d4bf in 3 real palettes, including Ledger Dark and Indigo SaaS, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Wheat #f5deb3
shippedWheat is paired with #21d4bf in 3 real palettes, including Mint Chip and Resort, as the accent — a combination designers have actually shipped, not a computed rotation.
Plum #dda0dd
triadicshippedPlum completes a triad with #21d4bf — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Salmon #fa8072
split-complementSalmon is a split-complement of #21d4bf: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Real palettes that use #21d4bf
Tints & shades
Harmonies
Contrast
| #21d4bf as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.87:1 | fail | fail | fail | |
Aaon black | 11.23:1 | 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 #21d4bf 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 #21d4bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/21d4bf-a2bebe-d459a3-1f292d-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