Ledger Dark
Open in tool →Gold on midnight is the private-banking cue; the mint accent keeps it from feeling old-money stuffy.
Color
#45d99brgb(69, 217, 155)hsl(155, 66%, 56%)oklch(0.792 0.154 161.2)Charcoal, Hot Pink and Deep Sky 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 is the text near-black for #45d99b: softer than #000 and cool enough to feel like part of the same palette.
Hot Pink sits directly opposite #45d99b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Designers have shipped Deep Sky Blue with #45d99b: 4 real palettes, including Remix's brand system and Prime Video's brand system, as the lead colour.
4 real palettes, including Fresh Juice and Crayon Box put Mustard Yellow beside #45d99b, as the supporting colour.
Royal Blue is paired with #45d99b in 4 real palettes, including Docker's brand system and Brilliant's brand system, as the supporting colour.
Taupe is paired with #45d99b in 12 real palettes, including 7-Eleven's brand system and WhatsApp's brand system, as the lead colour.
Light Coral is a split-complement of #45d99b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
3 real palettes, including Unity's brand system and MongoDB's brand system put Blue beside #45d99b, as the supporting colour.
| #45d99b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.8:1 | fail | fail | fail | |
Aaon black | 11.65:1 | 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 #45d99b as the background.
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 #45d99b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/45d99b-a2beb6-d459c8-1f2d2d-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