Color
#a9b201
#a9b201rgb(169, 178, 1)hsl(63, 99%, 35%)oklch(0.732 0.163 113.4)Colors that go with #a9b201
Blue, Cornflower Blue and Dark Olive Green 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.
Blue #0000ff
shipped6 real palettes, including Minecraft's brand system and League of Legends's brand system put Blue beside #a9b201, as the accent.
Cornflower Blue #6495ed
split-complementshippedCornflower Blue is a split-complement of #a9b201: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #a9b201 in 4 real palettes, including Forest Floor and Undergrowth, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #a9b201: 4 real palettes, including Open House and Guinness's brand system, as the lead colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #a9b201 in 4 real palettes, including Disney's brand system and Chevrolet's brand system, as the lead colour.
Taupe #483c32
shippedTaupe is paired with #a9b201 in 14 real palettes, including Acer's brand system and Citrus Grove, as the text colour against it.
Plum #dda0dd
complementaryPlum sits directly opposite #a9b201 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #a9b201: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Real palettes that use #a9b201
Tints & shades
Harmonies
Contrast
| #a9b201 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.32:1 | fail | fail | fail | |
Aaon black | 9.06:1 | 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 #a9b201 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 #a9b201 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/a9b201-b9bea2-4e8ddf-262d1f-f1eee9?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