Color
#99d657
#99d657rgb(153, 214, 87)hsl(89, 61%, 59%)oklch(0.808 0.17 130.9)Colors that go with #99d657
Charcoal, Plum 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 #36454f
neutralshippedCharcoal is the body-text near-black for #99d657: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Plum #dda0dd
complementaryshippedPlum sits directly opposite #99d657 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
triadicshippedDeep Sky Blue completes a triad with #99d657 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Royal Blue #4169e1
shippedRoyal Blue is paired with #99d657 in 4 real palettes, including MongoDB's brand system and Brilliant's brand system, as the supporting colour.
Taupe #483c32
shippedTaupe is paired with #99d657 in 11 real palettes, including Citrus Grove and Acer's brand system, as the text colour against it.
Dark Orange #ff8c00
shippedDark Orange shows up next to #99d657 in 3 real palettes, including Citrus Grove and Learning App, as the lead colour.
Mustard Yellow #ffdb58
shipped3 real palettes, including Citrus Grove and Meadow put Mustard Yellow beside #99d657, as the accent.
Red #ff0000
shippedRed is paired with #99d657 in 3 real palettes, including Gatorade's brand system and Wise's brand system, as the supporting colour.
Real palettes that use #99d657
Tints & shades
Harmonies
Contrast
| #99d657 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.73:1 | fail | fail | fail | |
Aaon black | 12.11:1 | 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 #99d657 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 #99d657 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/99d657-adbea2-4e4edf-212d1f-f1f1e9?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