Color
#51ecc2
#51ecc2rgb(81, 236, 194)hsl(164, 80%, 62%)oklch(0.851 0.143 171.2)Colors that go with #51ecc2
Charcoal, Deep Sky Blue and Taupe 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 #51ecc2: softer than #000 and cool enough to feel like part of the same palette.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #51ecc2: 4 real palettes, including Astro's brand system and Prime Video's brand system, as the supporting colour.
Taupe #483c32
shippedTaupe is paired with #51ecc2 in 8 real palettes, including Astro's brand system and Mint Chip, as the text colour against it.
Hot Pink #ff69b4
complementaryHot Pink sits directly opposite #51ecc2 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 #51ecc2 in 3 real palettes, including Formula 1's brand system and Frost & Ember, as the supporting colour.
Red #ff0000
shippedRed is paired with #51ecc2 in 3 real palettes, including Gatorade's brand system and Mattel's brand system, as the supporting colour.
Violet #ee82ee
split-complementViolet is a split-complement of #51ecc2: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Light Coral #f08080
split-complementLight Coral is a split-complement of #51ecc2: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Real palettes that use #51ecc2
Tints & shades
Harmonies
Contrast
| #51ecc2 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.49:1 | fail | fail | fail | |
Aaon black | 14.13:1 | 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 #51ecc2 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 #51ecc2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/51ecc2-a2beba-d459b5-1f2b2d-e9f1eb?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