# #39fee4

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

## Values

- Hex: `#39fee4`
- RGB: rgb(57, 254, 228)
- HSL: hsl(172, 99%, 61%)
- OKLCH: oklch(0.899 0.152 181.4)
- Relative luminance: 0.7735
- Nearest named color: Arctic Water (#00fcfc, Δ 3.571) — https://brandsweets.com/colors/arctic-water
- Moods: vivid
- Page: https://brandsweets.com/colors/39fee4

## Tints & shades

- Tints (toward white): #4dfee7, #5dfee9, #71feeb, #85feee, #9afef1, #a9fff3, #bdfff6, #d1fff9, #e1fffb, #f5fffe
- Shades (toward black): #1bfee0, #01fedc, #01dfc2, #01c1a7, #01a791, #018977, #016b5c, #004c42, #00332c, #001412

## Harmonies

- Complementary: #fe3953
- Analogous: #39fe81, #39b6fe
- Triadic: #e439fe, #fee439
- Split-complementary: #fe39b6, #fe8139
- Tetradic: #8139fe, #fe3953, #b6fe39

## Colors that go with #39fee4

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 #39fee4: softer than #000 and cool enough to feel like part of the same palette. Seen in: Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Canopy (https://brandsweets.com/palettes/cool#canopy), UEFA (https://brandsweets.com/colors/brands/uefa-com). — https://brandsweets.com/colors/charcoal
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #39fee4: 4 real palettes, including Astro's brand system and Prime Video's brand system, as the supporting colour. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Remix (https://brandsweets.com/colors/brands/remix-run). — https://brandsweets.com/colors/deepskyblue
- **Light Coral** #f08080 [harmony: complementary] — Light Coral sits directly opposite #39fee4 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/lightcoral
- **Crimson** #dc143c [pool] — Crimson is paired with #39fee4 in 3 real palettes, including Formula 1's brand system and Tiffany & Co.'s brand system, as the supporting colour. Seen in: Formula 1 (https://brandsweets.com/colors/brands/formula1-com), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/crimson
- **Taupe** #483c32 [pool] — Taupe is paired with #39fee4 in 3 real palettes, including Astro's brand system and Mint Chip, as the text colour against it. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Mint Chip (https://brandsweets.com/palettes/light#mint-chip), Macaron (https://brandsweets.com/palettes/light#macaron). — https://brandsweets.com/colors/taupe
- **Plum** #dda0dd [harmony, pool: triadic] — Plum completes a triad with #39fee4 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Netlify (https://brandsweets.com/colors/brands/netlify-com). — https://brandsweets.com/colors/plum
- **Salmon** #fa8072 [harmony: split] — Salmon is a split-complement of #39fee4: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/salmon
- **Violet** #ee82ee [harmony: split] — Violet is a split-complement of #39fee4: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/violet

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

- On white (#ffffff): 1.27:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #018472 (4.62:1); AA: background → #666666 (4.5:1); AAA: text → #006054 (7.5:1); AAA: background → #474747 (7.29:1)
- On black (#000000): 16.47:1 — AA pass, AA-large pass, AAA pass

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/39fee4-a2bebe-d459a5-1f292d-e9f1ec?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: "#39fee4" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.