# #f9ef39

A color — warm, vivid, playful, bold. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#f9ef39`
- RGB: rgb(249, 239, 57)
- HSL: hsl(57, 94%, 60%)
- OKLCH: oklch(0.931 0.185 106.2)
- Relative luminance: 0.8217
- Nearest named color: Banana Bombshell (#f7e82e, Δ 1.749) — https://brandsweets.com/colors/banana-bombshell
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/f9ef39

## Tints & shades

- Tints (toward white): #f9f14d, #faf261, #fbf470, #fbf583, #fcf797, #fcf8ab, #fdfabf, #fdfbce, #fefde1, #fffef5
- Shades (toward black): #f8ed1b, #f2e707, #d5ca07, #bcb306, #9e9705, #817a04, #686303, #4a4702, #312f02, #141301

## Harmonies

- Complementary: #3943f9
- Analogous: #f98f39, #a3f939
- Triadic: #39f9ef, #ef39f9
- Split-complementary: #39a3f9, #8f39f9
- Tetradic: #39f98f, #3943f9, #f939a3

## Colors that go with #f9ef39

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Lilac** #c8a2c8 [harmony, pool: complementary] — Lilac sits directly opposite #f9ef39 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Phantom: The money app that'll take you placesLogo PhantomLogo PhantomLogo Phantom (https://brandsweets.com/colors/brands/phantom-com). — https://brandsweets.com/colors/lilac
- **Blue** #0000ff [pool] — 4 real palettes, including Snapchat's brand system and Bumble's brand system put Blue beside #f9ef39, as the supporting colour. Seen in: Snapchat (https://brandsweets.com/colors/brands/snapchat-com), Bumble (https://brandsweets.com/colors/brands/bumble-com), Binance (https://brandsweets.com/colors/brands/binance-com), Robinhood (https://brandsweets.com/colors/brands/robinhood-com). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #f9ef39: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Zendesk (https://brandsweets.com/colors/brands/zendesk-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Lido (https://brandsweets.com/palettes/vivid#lido). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #f9ef39 in 8 real palettes, including Ferrari's brand system and Lay's's brand system, as the lead colour. Seen in: Ferrari (https://brandsweets.com/colors/brands/ferrari-com), Lay's (https://brandsweets.com/colors/brands/lays-com), Tequila Sunrise (https://brandsweets.com/palettes/vivid#tequila-sunrise), Diner (https://brandsweets.com/palettes/vivid#diner). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [harmony, pool: split] — Deep Sky Blue is a split-complement of #f9ef39: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #f9ef39: 6 real palettes, including Ikea's brand system and FIFA's brand system, as the accent. Seen in: Ikea (https://brandsweets.com/colors/brands/ikea-com), FIFA (https://brandsweets.com/colors/brands/fifa-com), LEGO (https://brandsweets.com/colors/brands/lego-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/denim
- **Red** #ff0000 [pool] — Red is paired with #f9ef39 in 4 real palettes, including Heineken's brand system and Paddle's brand system, as the accent. Seen in: Heineken (https://brandsweets.com/colors/brands/heineken-com), Paddle (https://brandsweets.com/colors/brands/paddle-com), Phantom: The money app that'll take you placesLogo PhantomLogo PhantomLogo Phantom (https://brandsweets.com/colors/brands/phantom-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/red
- **Taupe** #483c32 [pool] — Taupe is paired with #f9ef39 in 9 real palettes, including Crayon Box and Calvin Klein's brand system, as the text colour against it. Seen in: Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Calvin Klein (https://brandsweets.com/colors/brands/calvinklein-us), Tommy Hilfiger (https://brandsweets.com/colors/brands/tommy-com), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove). — https://brandsweets.com/colors/taupe

## Contrast (WCAG 2.x, as text)

- On white (#ffffff): 1.2:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #7c7604 (4.72:1); AA: background → #696969 (4.56:1); AAA: text → #5e5903 (7.23:1); AAA: background → #4d4d4d (7.02:1)
- On black (#000000): 17.43:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Heineken** — secondary #fff000 (Δ 1.541) — https://brandsweets.com/colors/brands/heineken-com
- **Gumroad** — secondary #f1f333 (Δ 1.551) — https://brandsweets.com/colors/brands/gumroad-com
- **Star Wars** — primary #ffe81f (Δ 1.746) — https://brandsweets.com/colors/brands/starwars-com
- **Dollar General** — secondary #fff200 (Δ 1.826) — https://brandsweets.com/colors/brands/dollargeneral-com
- **Ferrari** — secondary #fff200 (Δ 1.826) — https://brandsweets.com/colors/brands/ferrari-com

## Fonts for this mood

- warm: https://brandsweets.com/fonts/mood/warm
- playful: https://brandsweets.com/fonts/mood/playful
- bold: https://brandsweets.com/fonts/mood/bold

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/f9ef39-bcbea2-4e9bdf-282d1f-f1ede9?lock=0&style=vibrant
(Humans lock/regenerate in the tool; the URL is the state — read `lock=` back to see what they kept.)

## Connect an agent

Point any MCP client at the BrandSweets colors endpoint for the same engine:

- Endpoint: https://mcp.brandsweets.com/colors/mcp
- Tools: `analyze_color` (e.g. `analyze_color({ color: "#f9ef39" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.