Color
#a3b21f
#a3b21frgb(163, 178, 31)hsl(66, 70%, 41%)oklch(0.727 0.158 115.8)Colors that go with #a3b21f
Blue, Champagne and Dodger 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.
Blue #0000ff
shipped6 real palettes, including Minecraft's brand system and League of Legends's brand system put Blue beside #a3b21f, as the accent.
Champagne #f7e7ce
shipped4 real palettes, including Forest Floor and Midnight Luxe put Champagne beside #a3b21f, as that palette's text colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #a3b21f: 4 real palettes, including Liquid Death's brand system and Playground, as the supporting colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #a3b21f in 4 real palettes, including Disney's brand system and Chevrolet's brand system, as the lead colour.
Taupe #483c32
shippedTaupe is paired with #a3b21f in 16 real palettes, including Acer's brand system and Citrus Grove, as the text colour against it.
Plum #dda0dd
complementaryPlum sits directly opposite #a3b21f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Cornflower Blue #6495ed
split-complementshippedCornflower Blue is a split-complement of #a3b21f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #a3b21f: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Real palettes that use #a3b21f
Tints & shades
Harmonies
Contrast
| #a3b21f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.35:1 | fail | fail | fail | |
Aaon black | 8.95:1 | 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 #a3b21f 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 #a3b21f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/a3b21f-b8bea2-4e86df-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