Color
#b5cf59
#b5cf59rgb(181, 207, 89)hsl(73, 55%, 58%)oklch(0.811 0.147 120.2)Colors that go with #b5cf59
Charcoal, Deep Sky Blue and Plum 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 #b5cf59: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Deep Sky Blue #00bfff
triadicshippedDeep Sky Blue completes a triad with #b5cf59 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Plum #dda0dd
complementaryshippedPlum sits directly opposite #b5cf59 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 Binance's brand system and Minecraft's brand system put Blue beside #b5cf59, as the accent.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #b5cf59: 4 real palettes, including NBA's brand system and Ahrefs's brand system, as the accent.
Crimson #dc143c
shippedCrimson is paired with #b5cf59 in 7 real palettes, including Wise's brand system and Diner, as the accent.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #b5cf59 in 5 real palettes, including Miro's brand system and Farmers Market, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #b5cf59: 8 real palettes, including Wikipedia's brand system and Walmart's brand system, as the supporting colour.
Real palettes that use #b5cf59
Tints & shades
Harmonies
Contrast
| #b5cf59 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.75:1 | fail | fail | fail | |
Aaon black | 12.03:1 | 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 #b5cf59 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 #b5cf59 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/b5cf59-b5bea2-4e75df-242d1f-f1efe9?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