Color
#51d6cb
#51d6cbrgb(81, 214, 203)hsl(175, 62%, 58%)oklch(0.801 0.116 187.4)Colors that go with #51d6cb
Charcoal, Light Coral and 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 #51d6cb: softer than #000 and cool enough to feel like part of the same palette.
Light Coral #f08080
complementaryshippedLight Coral sits directly opposite #51d6cb on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped4 real palettes, including Canva's brand system and Uber's brand system put Blue beside #51d6cb, as the accent.
Crimson #dc143c
shippedCrimson is paired with #51d6cb in 4 real palettes, including Tiffany & Co.'s brand system and Riot Games's brand system, as the supporting colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #51d6cb: 5 real palettes, including Salesforce's brand system and Astro's brand system, as the lead colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #51d6cb: 4 real palettes, including Patreon's brand system and Opensea's brand system, as the accent.
Royal Blue #4169e1
shippedRoyal Blue is paired with #51d6cb in 4 real palettes, including Docker's brand system and Khan Academy's brand system, as the supporting colour.
Slate Gray #708090
shipped4 real palettes, including Ledger Dark and Still Water put Slate Gray beside #51d6cb, as the supporting colour.
Real palettes that use #51d6cb
Tints & shades
Harmonies
Contrast
| #51d6cb as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.78:1 | fail | fail | fail | |
Aaon black | 11.83:1 | 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 #51d6cb 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 #51d6cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/51d6cb-a2bdbe-d4599f-1f282d-e9f1ed?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