# #9efffc

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

## Values

- Hex: `#9efffc`
- RGB: rgb(158, 255, 252)
- HSL: hsl(178, 100%, 81%)
- OKLCH: oklch(0.939 0.092 193.2)
- Relative luminance: 0.8582
- Nearest named color: Frostbite (#acfffc, Δ 1.332) — https://brandsweets.com/colors/frostbite
- Moods: vivid, light, clean
- Page: https://brandsweets.com/colors/9efffc

## Tints & shades

- Tints (toward white): #a8fffc, #adfffc, #b8fffd, #c2fffd, #ccfffd, #d1fffd, #dbfffe, #e5fffe, #ebfffe, #f5ffff
- Shades (toward black): #75fffa, #52fff9, #29fff8, #00fff7, #00dbd4, #00b3ad, #008a85, #00615e, #003d3b, #001414

## Harmonies

- Complementary: #ff9ea1
- Analogous: #9effcb, #9ed2ff
- Triadic: #fc9eff, #fffc9e
- Split-complementary: #ff9ed2, #ffcb9e
- Tetradic: #cb9eff, #ff9ea1, #d2ff9e

## Colors that go with #9efffc

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 text near-black for #9efffc: softer than #000 and cool enough to feel like part of the same palette. Seen in: Sweetgreen (https://brandsweets.com/colors/brands/sweetgreen-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Canopy (https://brandsweets.com/palettes/cool#canopy). — https://brandsweets.com/colors/charcoal
- **Coral** #ff7f50 [harmony, pool: split] — Coral is a split-complement of #9efffc: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Clinic (https://brandsweets.com/palettes/clean#clinic), Sketch (https://brandsweets.com/colors/brands/sketch-com), Temu (https://brandsweets.com/colors/brands/temu-com), Dusk Gradient (https://brandsweets.com/palettes/dark#dusk-gradient). — https://brandsweets.com/colors/coral
- **Deep Sky Blue** #00bfff [harmony, pool: analogous] — Deep Sky Blue is #9efffc's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Deep Water (https://brandsweets.com/palettes/dark#deep-water), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Calendly (https://brandsweets.com/colors/brands/calendly-com), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue
- **Emerald Green** #50c878 [harmony, pool: analogous] — Emerald Green is #9efffc's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Supabase (https://brandsweets.com/colors/brands/supabase), Meadow (https://brandsweets.com/palettes/light#meadow), Playground (https://brandsweets.com/palettes/bold#playground). — https://brandsweets.com/colors/emerald-green
- **Goldenrod** #daa520 [harmony, pool: triadic] — Goldenrod completes a triad with #9efffc — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty), Fireside (https://brandsweets.com/palettes/dark#fireside), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold). — https://brandsweets.com/colors/goldenrod
- **Light Coral** #f08080 [harmony, pool: complementary] — Light Coral sits directly opposite #9efffc on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Meadow (https://brandsweets.com/palettes/light#meadow), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Blush (https://brandsweets.com/palettes/light#blush), Sentry (https://brandsweets.com/colors/brands/sentry-io). — https://brandsweets.com/colors/lightcoral
- **Amber** #ffbf00 [pool] — Amber is paired with #9efffc in 21 real palettes, including Blueprint and Trailhead, as the accent. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Trailhead (https://brandsweets.com/palettes/warm#trailhead), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 47 real palettes, including Dropbox's brand system and Alaska Airlines's brand system put Blue beside #9efffc, as the accent. Seen in: Dropbox (https://brandsweets.com/colors/brands/dropbox-com), Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Cargo (https://brandsweets.com/colors/brands/cargo-site), Binance (https://brandsweets.com/colors/brands/binance-com). — https://brandsweets.com/colors/blue

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

- On white (#ffffff): 1.16:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #00807b (4.8:1); AA: background → #6b6b6b (4.61:1); AAA: text → #00615e (7.31:1); AAA: background → #4f4f4f (7.08:1)
- On black (#000000): 18.16:1 — 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/9efffc-a2bcbe-d45999-1f282d-e9f1ed?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: "#9efffc" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.