Blueprint
Open in tool →Cyan and indigo on navy is the developer-tool look; amber is the only warm note, so it always reads as 'attention'.
Color
#f9bf10
#f9bf10
hex
#f9bf10rgb
rgb(249, 191, 16)hsl
hsl(45, 95%, 52%)oklch
oklch(0.834 0.169 86.1)Closest name: Amber (#ffbf00)Relative luminance 0.5744
Colors that go with #f9bf10
Charcoal, Cornflower Blue 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 #f9bf10: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Cornflower Blue #6495ed
complementaryshippedCornflower Blue sits directly opposite #f9bf10 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
split-complementshippedDeep Sky Blue is a split-complement of #f9bf10: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Crimson #dc143c
shippedCrimson is paired with #f9bf10 in 7 real palettes, including McDonald's's brand system and Tabloid, as the supporting colour.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #f9bf10 in 4 real palettes, including Farmers Market and Miro's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #f9bf10: 11 real palettes, including Warner Bros.'s brand system and Walmart's brand system, as the supporting colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #f9bf10: 7 real palettes, including Google's brand system and Heatwave, as the lead colour.
Emerald Green #50c878
shippedEmerald Green is paired with #f9bf10 in 4 real palettes, including Meadow and Ubereats's brand system, as the lead colour.
Real palettes that use #f9bf10
Tints & shades
Harmonies
Contrast
| #f9bf10 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.68:1 | fail | fail | fail | |
Aaon black | 12.49:1 | 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 #f9bf10 as the background.
Brands using this color
- Ahrefssecondary · #fac000 · Δ0.402
- Salesforceaccent · #fcc003 · Δ0.574
- Googleaccent · #fbbc05 · Δ0.727
- Warner Bros.accent · #fec200 · Δ1.157
- Southwest Airlinesaccent · #ffbf27 · Δ1.266
- Walmartaccent · #fcc422 · Δ1.342
- Mastodon hosted on mastodon.socialaccent · #ffb900 · Δ1.598
- Lemon Squeezyprimary · #fcc434 · Δ1.634
- Wikipediaaccent · #f0bc00 · Δ1.693
Palettes built around it
Trailhead
Open in tool →Rust, pine and sun — high-visibility earth tones that read at a distance and on a trail sign.
Heatwave
Open in tool →Blaze orange and hot yellow with one cold blue — the high-noon palette; use the blue where the eye needs to rest.
Fonts for this mood
#f9bf10 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #f9bf10
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #f9bf10 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/f9bf10-c4be9c-62afcb-2b2d1f-f1ebe9?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