# #1ff99b

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

## Values

- Hex: `#1ff99b`
- RGB: rgb(31, 249, 155)
- HSL: hsl(154, 95%, 55%)
- OKLCH: oklch(0.866 0.202 156.8)
- Relative luminance: 0.7041
- Nearest named color: mediumspringgreen (#00fa9a, Δ 0.461) — https://brandsweets.com/colors/mediumspringgreen
- Moods: vivid
- Page: https://brandsweets.com/colors/1ff99b

## Tints & shades

- Tints (toward white): #33faa4, #4cfaaf, #60fbb8, #74fbc1, #8dfccc, #a1fdd5, #b4fdde, #c8fee7, #e1fef2, #f5fffb
- Shades (toward black): #06f990, #06e081, #05c773, #04ae65, #049556, #037745, #025e37, #024628, #012d1a, #01140b

## Harmonies

- Complementary: #f91f7e
- Analogous: #1ff92e, #1febf9
- Triadic: #9b1ff9, #f99b1f
- Split-complementary: #f91feb, #f92e1f
- Tetradic: #2e1ff9, #f91f7e, #ebf91f

## Colors that go with #1ff99b

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

- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #1ff99b 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/violet
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #1ff99b: softer than #000 and cool enough to feel like part of the same palette. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com). — https://brandsweets.com/colors/charcoal
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #1ff99b: 3 real palettes, including Prime Video's brand system and Remix's brand system, as the supporting colour. Seen in: Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Remix (https://brandsweets.com/colors/brands/remix-run), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue
- **Taupe** #483c32 [pool] — Taupe is paired with #1ff99b in 3 real palettes, including 7-Eleven's brand system and Astro's brand system, as the lead colour. Seen in: 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Astro (https://brandsweets.com/colors/brands/astro-build), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com). — https://brandsweets.com/colors/taupe
- **Light Coral** #f08080 [harmony: split] — Light Coral is a split-complement of #1ff99b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/lightcoral
- **Plum** #dda0dd [harmony: split] — Plum is a split-complement of #1ff99b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/plum
- **Crimson** #dc143c [pool] — Crimson is paired with #1ff99b in two real palettes: Formula 1's brand system and Wise's brand system, as the supporting colour. Seen in: Formula 1 (https://brandsweets.com/colors/brands/formula1-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/crimson
- **Red** #ff0000 [pool] — Red is paired with #1ff99b in two real palettes: Gatorade's brand system and Wise's brand system, as the supporting colour. Seen in: Gatorade (https://brandsweets.com/colors/brands/gatorade-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/red

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

- On white (#ffffff): 1.39:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #03864e (4.64:1); AA: background → #5e5e5e (4.66:1); AAA: text → #036339 (7.37:1); AAA: background → #424242 (7.22:1)
- On black (#000000): 15.08:1 — 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/1ff99b-a2beb5-d459ca-1f2d2d-e9f1ea?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: "#1ff99b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.