Color
#21deb8
#21deb8rgb(33, 222, 184)hsl(168, 74%, 50%)oklch(0.806 0.149 173.9)Colors that go with #21deb8
Charcoal, Crimson and Deep Sky 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 #21deb8: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
shippedCrimson is paired with #21deb8 in 4 real palettes, including Formula 1's brand system and Tiffany & Co.'s brand system, as the supporting colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #21deb8: 4 real palettes, including Astro's brand system and Prime Video's brand system, as the supporting colour.
Taupe #483c32
shippedTaupe is paired with #21deb8 in 9 real palettes, including Crayon Box and Astro's brand system, as the text colour against it.
Hot Pink #ff69b4
complementaryHot Pink sits directly opposite #21deb8 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped3 real palettes, including Canva's brand system and Unity's brand system put Blue beside #21deb8, as the accent.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #21deb8: 3 real palettes, including Unity's brand system and Bluesky Social's brand system, as the lead colour.
Plum #dda0dd
triadicshippedPlum completes a triad with #21deb8 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Real palettes that use #21deb8
Tints & shades
Harmonies
Contrast
| #21deb8 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.72:1 | fail | fail | fail | |
Aaon black | 12.21:1 | 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 #21deb8 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 #21deb8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/21deb8-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