Color
#21a697
#21a697rgb(33, 166, 151)hsl(173, 67%, 39%)oklch(0.655 0.11 183.2)Colors that go with #21a697
Charcoal, Copper and Crimson 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 #21a697: softer than #000 and cool enough to feel like part of the same palette.
Copper #b87333
shippedDesigners have shipped Copper with #21a697: 4 real palettes, including Clean Beauty and Wellness, as the accent.
Crimson #dc143c
shippedCrimson is paired with #21a697 in 5 real palettes, including Diner and DuckDuckGo's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #21a697: 8 real palettes, including Peacock and Open House, as the supporting colour.
Midnight Blue #191970
shipped8 real palettes, including Tide Pool and Ford's brand system put Midnight Blue beside #21a697, as that palette's text colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #21a697 in 7 real palettes, including Khan Academy's brand system and Confluent's brand system, as the accent.
Taupe #483c32
shippedTaupe is paired with #21a697 in 13 real palettes, including Rain Garden and Resort, as that palette's text colour.
Deep Pink #ff1493
complementaryDeep Pink sits directly opposite #21a697 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 #21a697
Tints & shades
Harmonies
Contrast
| #21a697 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.01:1 | fail | pass | fail | |
Aaon black | 6.97:1 | pass | pass | fail |
|
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #21a697 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 #21a697 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/21a697-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