# #ffef61

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

## Values

- Hex: `#ffef61`
- RGB: rgb(255, 239, 97)
- HSL: hsl(54, 100%, 69%)
- OKLCH: oklch(0.939 0.16 102.9)
- Relative luminance: 0.8386
- Nearest named color: Buttercup Glow (#f1f458, Δ 2.54) — https://brandsweets.com/colors/buttercup-glow
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/ffef61

## Tints & shades

- Tints (toward white): #fff170, #fff280, #fff48f, #fff59e, #fff7ad, #fff8b8, #fff9c7, #fffbd6, #fffce5, #fffef5
- Shades (toward black): #ffec42, #ffe91f, #ffe600, #dbc500, #bdaa00, #998a00, #7a6e00, #574e00, #383200, #141200

## Harmonies

- Complementary: #6171ff
- Analogous: #ffa061, #c0ff61
- Triadic: #61ffef, #ef61ff
- Split-complementary: #61c0ff, #a061ff
- Tetradic: #61ffa0, #6171ff, #ff61c0

## Colors that go with #ffef61

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

- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #ffef61: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Zendesk (https://brandsweets.com/colors/brands/zendesk-com), Lido (https://brandsweets.com/palettes/vivid#lido), Coastal (https://brandsweets.com/palettes/cool#coastal). — https://brandsweets.com/colors/charcoal
- **Lilac** #c8a2c8 [harmony, pool: complementary] — Lilac sits directly opposite #ffef61 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 Bumble's brand system and Snapchat's brand system put Blue beside #ffef61, as the supporting colour. Seen in: Bumble (https://brandsweets.com/colors/brands/bumble-com), Snapchat (https://brandsweets.com/colors/brands/snapchat-com), Binance (https://brandsweets.com/colors/brands/binance-com), Robinhood (https://brandsweets.com/colors/brands/robinhood-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #ffef61 in 7 real palettes, including Lay's's brand system and Ferrari's brand system, as the accent. Seen in: Lay's (https://brandsweets.com/colors/brands/lays-com), Ferrari (https://brandsweets.com/colors/brands/ferrari-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 #ffef61: 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 #ffef61: 6 real palettes, including FIFA's brand system and Ikea's brand system, as the supporting colour. Seen in: FIFA (https://brandsweets.com/colors/brands/fifa-com), Ikea (https://brandsweets.com/colors/brands/ikea-com), LEGO (https://brandsweets.com/colors/brands/lego-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/denim
- **Taupe** #483c32 [pool] — Taupe is paired with #ffef61 in 13 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), Nursery (https://brandsweets.com/palettes/light#nursery). — https://brandsweets.com/colors/taupe
- **Tomato** #ff6347 [pool] — 5 real palettes, including Crayon Box and Night Market put Tomato beside #ffef61, as the lead colour. Seen in: Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Night Market (https://brandsweets.com/palettes/vivid#night-market), Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice), Lido (https://brandsweets.com/palettes/vivid#lido). — https://brandsweets.com/colors/tomato

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

- On white (#ffffff): 1.18:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #857700 (4.53:1); AA: background → #6b6b6b (4.51:1); AAA: text → #615700 (7.31:1); AAA: background → #4d4d4d (7.15:1)
- On black (#000000): 17.77:1 — AA pass, AA-large pass, AAA pass

## Curated palettes containing it

- **Crayon Box** (playful, vivid, friendly) — #ff5e5b, #00cecb, #ffed66, #ffffff, #222222 — Red, teal and yellow at crayon saturation — joyful, but on white with black type so it stays readable for grown-ups. — tool: https://brandsweets.com/palettes/new/ff5e5b-00cecb-ffed66-ffffff-222222 — collection: https://brandsweets.com/palettes/playful

## 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/ffef61-bebea2-4ea2df-292d1f-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: "#ffef61" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.