Named color
Ultra Mint
#a3efb8rgb(163, 239, 184)hsl(137, 70%, 79%)oklch(0.888 0.107 152.5)Ultra Mint on this page is the real value, not a screenshot: exact hex, RGB, HSL and OKLCH, ten tints and ten shades, classic harmonies, and WCAG contrast with fixes — plus the curated palettes it appears in and any public brand that adopts it.
Colors that go with Ultra Mint
Charcoal, Plum and Crimson 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 Ultra Mint: softer than #000 and cool enough to feel like part of the same palette.
Plum #dda0dd
complementaryshippedPlum sits directly opposite Ultra Mint 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 Ultra Mint in 4 real palettes, including Formula 1's brand system and Wise's brand system, as the supporting colour.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to Ultra Mint in 4 real palettes, including Forest Floor and Oatmeal, as the supporting colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with Ultra Mint: 5 real palettes, including Astro's brand system and Prime Video's brand system, as the supporting colour.
Hunter Green #355e3b
shippedHunter Green is paired with Ultra Mint in 4 real palettes, including Canopy and Pine & Birch, as the lead colour.
Peru #cd853f
shipped4 real palettes, including Woodsmoke and Coffee Bar put Peru beside Ultra Mint, as the lead colour.
Sage Green #9caf88
shippedDesigners have shipped Sage Green with Ultra Mint: 6 real palettes, including Pine & Birch and Forest Floor, as the supporting colour.
Real palettes that use Ultra Mint
Tints & shades
Harmonies
Contrast
| Ultra Mint as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.35:1 | fail | fail | fail | |
Aaon black | 15.6:1 | 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 Ultra Mint 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
Ultra Mint reads as vivid, light, clean. 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 #a3efb8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/a3efb8-a2bead-bb59d4-1f2d29-ebf1e9?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