Color
#21e8f2
#21e8f2rgb(33, 232, 242)hsl(183, 89%, 54%)oklch(0.848 0.14 200.6)Colors that go with #21e8f2
Charcoal, Deep Sky Blue 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 #21e8f2: softer than #000 and cool enough to feel like part of the same palette.
Deep Sky Blue #00bfff
analogousshippedDeep Sky Blue is #21e8f2's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Light Coral #f08080
complementaryshippedLight Coral sits directly opposite #21e8f2 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Crimson #dc143c
shippedCrimson is paired with #21e8f2 in 4 real palettes, including Formula 1's brand system and Tiffany & Co.'s brand system, as the supporting colour.
Taupe #483c32
shippedTaupe is paired with #21e8f2 in 9 real palettes, including Boeing's brand system and Astro's brand system, as the text colour against it.
Wheat #f5deb3
shippedDesigners have shipped Wheat with #21e8f2: 4 real palettes, including Mint Chip and Oatly's brand system, as the accent.
Dark Orange #ff8c00
split-complementshippedDark Orange is a split-complement of #21e8f2: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Blue #0000ff
shipped3 real palettes, including Uber's brand system and Canva's brand system put Blue beside #21e8f2, as the accent.
Real palettes that use #21e8f2
Tints & shades
Harmonies
Contrast
| #21e8f2 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.51:1 | fail | fail | fail | |
Aaon black | 13.89:1 | 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 #21e8f2 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#21e8f2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
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 #21e8f2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/21e8f2-a2b9be-d4598e-1f262d-e9f1ee?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