# #4def83

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

## Values

- Hex: `#4def83`
- RGB: rgb(77, 239, 131)
- HSL: hsl(140, 84%, 62%)
- OKLCH: oklch(0.844 0.2 150.5)
- Relative luminance: 0.6495
- Nearest named color: Emerald Ice Palace (#2af589, Δ 1.747) — https://brandsweets.com/colors/emerald-ice-palace
- Moods: vivid
- Page: https://brandsweets.com/colors/4def83

## Tints & shades

- Tints (toward white): #5ff190, #6ef29a, #80f4a7, #8ef5b1, #a1f7be, #b4f8cb, #c2fad5, #d5fbe2, #e3fdeb, #f6fef8
- Shades (toward black): #31ed6f, #14eb5c, #12d353, #10b748, #0d9b3d, #0b7f32, #096327, #074b1d, #042f12, #021307

## Harmonies

- Complementary: #ef4db9
- Analogous: #68ef4d, #4defd4
- Triadic: #834def, #ef834d
- Split-complementary: #d44def, #ef4d68
- Tetradic: #4d68ef, #ef4db9, #efd44d

## Colors that go with #4def83

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

- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #4def83: 4 real palettes, including Remix's brand system and Prime Video's brand system, as the lead colour. Seen in: Remix (https://brandsweets.com/colors/brands/remix-run), Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Astro (https://brandsweets.com/colors/brands/astro-build), Learning App (https://brandsweets.com/palettes/playful#learning-app). — https://brandsweets.com/colors/deepskyblue
- **Taupe** #483c32 [pool] — Taupe is paired with #4def83 in 7 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), Acer (https://brandsweets.com/colors/brands/acer-com). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #4def83 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 #4def83: softer than #000 and cool enough to feel like part of the same palette. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Zendesk (https://brandsweets.com/colors/brands/zendesk-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #4def83 in 3 real palettes, including MongoDB's brand system and Docker's brand system, as the supporting colour. Seen in: MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Docker (https://brandsweets.com/colors/brands/docker-com), Brilliant (https://brandsweets.com/colors/brands/brilliant-org). — https://brandsweets.com/colors/royalblue
- **Yellow Green** #9acd32 [harmony, pool: analogous] — Yellow Green is #4def83's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Monster Energy (https://brandsweets.com/colors/brands/monsterenergy-com), Acer (https://brandsweets.com/colors/brands/acer-com). — https://brandsweets.com/colors/yellowgreen
- **Light Coral** #f08080 [harmony: split] — Light Coral is a split-complement of #4def83: 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 #4def83: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/plum

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

- On white (#ffffff): 1.5:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0c8835 (4.58:1); AA: background → #595959 (4.67:1); AAA: text → #096728 (7.04:1); AAA: background → #3d3d3d (7.24:1)
- On black (#000000): 13.99:1 — 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/4def83-a2beaf-c259d4-1f2d2a-ebf1e9?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: "#4def83" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.