Color
#51e6aa
#51e6aargb(81, 230, 170)hsl(156, 75%, 61%)oklch(0.831 0.153 162.7)Colors that go with #51e6aa
Charcoal, Crimson 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 #51e6aa: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
shippedCrimson is paired with #51e6aa in 4 real palettes, including Formula 1's brand system and Wise's brand system, as the supporting colour.
Taupe #483c32
shippedTaupe is paired with #51e6aa in 10 real palettes, including Astro's brand system and 7-Eleven's brand system, as the text colour against it.
Hot Pink #ff69b4
complementaryHot Pink sits directly opposite #51e6aa on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #51e6aa: 3 real palettes, including Prime Video's brand system and Astro's brand system, as the supporting colour.
Mustard Yellow #ffdb58
shipped3 real palettes, including Fresh Juice and Crayon Box put Mustard Yellow beside #51e6aa, as the supporting colour.
Red #ff0000
shippedRed is paired with #51e6aa in 3 real palettes, including Gatorade's brand system and Wise's brand system, as the supporting colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #51e6aa in 3 real palettes, including Docker's brand system and MongoDB's brand system, as the supporting colour.
Real palettes that use #51e6aa
Tints & shades
Harmonies
Contrast
| #51e6aa as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.59:1 | fail | fail | fail | |
Aaon black | 13.25:1 | 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 #51e6aa 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 #51e6aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/51e6aa-a2beb6-d459c6-1f2d2d-e9f1ea?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