# #eff09d

A color — vivid, light, clean. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#eff09d`
- RGB: rgb(239, 240, 157)
- HSL: hsl(61, 73%, 78%)
- OKLCH: oklch(0.936 0.104 108.8)
- Relative luminance: 0.8311
- Nearest named color: Banan-Appeal (#faf3a6, Δ 2.017) — https://brandsweets.com/colors/banan-appeal
- Moods: vivid, light, clean
- Page: https://brandsweets.com/colors/eff09d

## Tints & shades

- Tints (toward white): #f0f1a7, #f1f3b0, #f3f4b8, #f4f5c1, #f6f7ca, #f7f8d3, #f9f9dc, #fafbe5, #fcfced, #fdfef6
- Shades (toward black): #e9eb7f, #e3e65c, #dee13d, #d1d421, #b2b51c, #949617, #717312, #53540d, #303108, #111203

## Harmonies

- Complementary: #9f9ef0
- Analogous: #f0c89e, #c6f09e
- Triadic: #9eeef0, #f09eee
- Split-complementary: #9ec6f0, #c89ef0
- Tetradic: #9ef0c8, #9f9ef0, #f09ec6

## Colors that go with #eff09d

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 #eff09d: 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), Sweetgreen (https://brandsweets.com/colors/brands/sweetgreen-com). — https://brandsweets.com/colors/charcoal
- **Sand** #c2b280 [harmony, pool: analogous] — Sand is #eff09d's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Bramble (https://brandsweets.com/palettes/muted#bramble), Greige (https://brandsweets.com/palettes/neutral#greige), Sonos (https://brandsweets.com/colors/brands/sonos-com), Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding). — https://brandsweets.com/colors/sand
- **Sky Blue** #87ceeb [harmony, pool: triadic] — Sky Blue completes a triad with #eff09d — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Pastel Pop (https://brandsweets.com/palettes/playful#pastel-pop), Oatly (https://brandsweets.com/colors/brands/oatly-com), Still Water (https://brandsweets.com/palettes/cool#still-water), Coastal (https://brandsweets.com/palettes/cool#coastal). — https://brandsweets.com/colors/skyblue
- **Lilac** #c8a2c8 [harmony, pool: complementary] — Lilac sits directly opposite #eff09d on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe), Phantom: The money app that'll take you placesLogo PhantomLogo PhantomLogo Phantom (https://brandsweets.com/colors/brands/phantom-com), Crypto.com (https://brandsweets.com/colors/brands/crypto-com). — https://brandsweets.com/colors/lilac
- **Amber** #ffbf00 [pool] — Amber is paired with #eff09d in 8 real palettes, including Gumroad's brand system and Binance's brand system, as the accent. Seen in: Gumroad (https://brandsweets.com/colors/brands/gumroad-com), Binance (https://brandsweets.com/colors/brands/binance-com), Ember (https://brandsweets.com/palettes/bold#ember), Trailhead (https://brandsweets.com/palettes/warm#trailhead). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 6 real palettes, including Bumble's brand system and Binance's brand system put Blue beside #eff09d, as the supporting colour. Seen in: Bumble (https://brandsweets.com/colors/brands/bumble-com), Binance (https://brandsweets.com/colors/brands/binance-com), Dropbox (https://brandsweets.com/colors/brands/dropbox-com), Snapchat (https://brandsweets.com/colors/brands/snapchat-com). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 6 real palettes, including Nursery and Blush put Blush Pink beside #eff09d, as the lead colour. Seen in: Nursery (https://brandsweets.com/palettes/light#nursery), Blush (https://brandsweets.com/palettes/light#blush), Estate (https://brandsweets.com/palettes/luxury#estate), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden). — https://brandsweets.com/colors/blush-pink
- **Brown** #a52a2a [pool] — 4 real palettes, including Woodsmoke and Typewriter put Brown beside #eff09d, as the accent. Seen in: Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), Typewriter (https://brandsweets.com/palettes/editorial#typewriter), Garnet (https://brandsweets.com/palettes/warm#garnet), Velvet (https://brandsweets.com/palettes/luxury#velvet). — https://brandsweets.com/colors/brown

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

- On white (#ffffff): 1.19:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #757713 (4.77:1); AA: background → #696969 (4.61:1); AAA: text → #57580e (7.48:1); AAA: background → #4d4d4d (7.09:1)
- On black (#000000): 17.62:1 — AA pass, AA-large pass, AAA pass

## Fonts for this mood

- clean: https://brandsweets.com/fonts/mood/clean

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/eff09d-babea2-4e92df-272d1f-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: "#eff09d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.